diff --git a/interfaces/inner_kits/native_cpp/test/fuzztest/BUILD.gn b/interfaces/inner_kits/native_cpp/test/fuzztest/BUILD.gn
index fcc2a5f1e232a0f43a02bded4b535401b7be33c5..23f55ba2dae64523ef2e63d3f7f97d8d1f425097 100644
--- a/interfaces/inner_kits/native_cpp/test/fuzztest/BUILD.gn
+++ b/interfaces/inner_kits/native_cpp/test/fuzztest/BUILD.gn
@@ -37,6 +37,8 @@ group("fuzztest") {
     "${services_path}/audiomanager/test/fuzztest/sourceserviceunregisterdistributedhardware_fuzzer:fuzztest",
     "${services_path}/audiomanager/test/fuzztest/sinkservicedump_fuzzer:fuzztest",
     "${services_path}/common/test/fuzztest/audiodatasetinit64_fuzzer:fuzztest",
+    "${services_path}/audiotransport/test/fuzztest/sinkctrltransonchannelevent_fuzzer:fuzztest",
+    "${services_path}/audiotransport/test/fuzztest/sourcectrltransonchannelevent_fuzzer:fuzztest",
     "onremotesinksvrdied_fuzzer:fuzztest",
     "onremotesourcesvrdied_fuzzer:fuzztest",
     "sinkhandlerfinishstartsa_fuzzer:fuzztest",
diff --git a/services/audiomanager/managersink/include/daudio_sink_manager.h b/services/audiomanager/managersink/include/daudio_sink_manager.h
deleted file mode 100644
index 439b5f0b35c6a0c87be9725cd682735d2b6cba74..0000000000000000000000000000000000000000
--- a/services/audiomanager/managersink/include/daudio_sink_manager.h
+++ /dev/null
@@ -1,117 +0,0 @@
-/*
- * Copyright (c) 2024 Huawei Device Co., Ltd.
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef OHOS_DAUDIO_SINK_MANAGER_H
-#define OHOS_DAUDIO_SINK_MANAGER_H
-
-#include <map>
-#include <mutex>
-
-#include "single_instance.h"
-#include "device_manager.h"
-#include "device_manager_callback.h"
-#ifdef DEVICE_SECURITY_LEVEL_ENABLE
-#include "device_security_defines.h"
-#include "device_security_info.h"
-#endif
-
-#include "daudio_ctrl_channel_listener.h"
-#include "daudio_sink_dev.h"
-#include "idaudio_source.h"
-#include "idaudio_sink_ipc_callback.h"
-#include "i_av_engine_provider_callback.h"
-
-namespace OHOS {
-namespace DistributedHardware {
-class EngineProviderListener : public IAVEngineProviderCallback {
-public:
-    EngineProviderListener() {};
-    ~EngineProviderListener() override {};
-
-    int32_t OnProviderEvent(const AVTransEvent &event) override;
-};
-
-class CtrlChannelListener : public CtrlChannelListenerCallback {
-public:
-    CtrlChannelListener() {};
-    ~CtrlChannelListener() override {};
-
-    void OnCtrlChannelEvent(const AVTransEvent &event) override;
-};
-
-class DeviceInitCallback : public DmInitCallback {
-    void OnRemoteDied() override;
-};
-
-class DAudioSinkManager {
-DECLARE_SINGLE_INSTANCE_BASE(DAudioSinkManager);
-public:
-    int32_t Init(const sptr<IDAudioSinkIpcCallback> &sinkCallback);
-    int32_t UnInit();
-    int32_t HandleDAudioNotify(const std::string &devId, const std::string &dhId, const int32_t eventType,
-        const std::string &eventContent);
-    int32_t DAudioNotify(const std::string &devId, const std::string &dhId, const int32_t eventType,
-        const std::string &eventContent);
-    void OnSinkDevReleased(const std::string &devId);
-    void NotifyEvent(const std::string &devId, const int32_t eventType, const std::string &eventContent);
-    void ClearAudioDev(const std::string &devId);
-    int32_t CreateAudioDevice(const std::string &devId);
-    void SetChannelState(const std::string &content);
-    int32_t PauseDistributedHardware(const std::string &networkId);
-    int32_t ResumeDistributedHardware(const std::string &networkId);
-    int32_t StopDistributedHardware(const std::string &networkId);
-    void SetCallerTokenId(uint64_t tokenId);
-
-private:
-    DAudioSinkManager();
-    ~DAudioSinkManager();
-    int32_t LoadAVSenderEngineProvider();
-    int32_t UnloadAVSenderEngineProvider();
-    int32_t LoadAVReceiverEngineProvider();
-    int32_t UnloadAVReceiverEngineProvider();
-    bool CheckDeviceSecurityLevel(const std::string &srcDeviceId, const std::string &dstDeviceId);
-    int32_t GetDeviceSecurityLevel(const std::string &udid);
-    std::string GetUdidByNetworkId(const std::string &networkId);
-    int32_t VerifySecurityLevel(const std::string &devId);
-    int32_t InitAudioDevice(std::shared_ptr<DAudioSinkDev> dev, const std::string &devId, bool isSpkOrMic);
-
-private:
-    static constexpr const char* DEVCLEAR_THREAD = "sinkClearTh";
-    std::mutex devMapMutex_;
-    std::unordered_map<std::string, std::shared_ptr<DAudioSinkDev>> audioDevMap_;
-    std::mutex remoteSvrMutex_;
-    std::mutex ipcCallbackMutex_;
-    std::map<std::string, sptr<IDAudioSource>> sourceServiceMap_;
-    std::thread devClearThread_;
-    std::string localNetworkId_;
-    ChannelState channelState_ = ChannelState::UNKNOWN;
-
-    std::shared_ptr<EngineProviderListener> providerListener_;
-    std::shared_ptr<CtrlChannelListener> ctrlListenerCallback_ = nullptr;
-    std::shared_ptr<DaudioCtrlChannelListener> ctrlListener_ = nullptr;
-    IAVEngineProvider *sendProviderPtr_ = nullptr;
-    IAVEngineProvider *rcvProviderPtr_ = nullptr;
-    void *pSHandler_ = nullptr;
-    void *pRHandler_ = nullptr;
-    bool isSensitive_ = false;
-    bool isSameAccount_ = false;
-    bool isCheckSecLevel_ = false;
-    sptr<IDAudioSinkIpcCallback> ipcSinkCallback_ = nullptr;
-    std::shared_ptr<DmInitCallback> initCallback_;
-    uint64_t callerTokenId_;
-};
-} // DistributedHardware
-} // OHOS
-#endif // OHOS_DAUDIO_SINK_MANAGER_H
diff --git a/services/audiomanager/managersource/include/daudio_source_manager.h b/services/audiomanager/managersource/include/daudio_source_manager.h
index 53b1d3b93111d79336835db02f66b86d30f1aec4..d4dbda941af9e7505e0c1b27e448f25b4fa8215f 100644
--- a/services/audiomanager/managersource/include/daudio_source_manager.h
+++ b/services/audiomanager/managersource/include/daudio_source_manager.h
@@ -96,7 +96,7 @@ private:
     void *pSHandler_ = nullptr;
     void *pRHandler_ = nullptr;
     std::atomic<bool> isHicollieRunning_ = true;
-    uint64_t callerTokenId_;
+    uint64_t callerTokenId_ = 0;
 
     class SourceManagerHandler : public AppExecFwk::EventHandler {
     public:
diff --git a/services/audiomanager/servicesink/BUILD.gn b/services/audiomanager/servicesink/BUILD.gn
index 2b097064eaf304d5a0a9732926968296a867b641..d638cc47afbe37cb781633f9c6edd73d262d30c1 100755
--- a/services/audiomanager/servicesink/BUILD.gn
+++ b/services/audiomanager/servicesink/BUILD.gn
@@ -101,8 +101,6 @@ ohos_shared_library("distributed_audio_sink") {
     "hisysevent:libhisysevent",
     "hitrace:hitrace_meter",
     "ipc:ipc_core",
-    "os_account:libaccountkits",
-    "os_account:os_account_innerkits",
     "safwk:system_ability_fwk",
     "samgr:samgr_proxy",
   ]
diff --git a/services/audiotransport/test/fuzztest/sinkctrltransonchannelevent_fuzzer/BUILD.gn b/services/audiotransport/test/fuzztest/sinkctrltransonchannelevent_fuzzer/BUILD.gn
new file mode 100644
index 0000000000000000000000000000000000000000..60d4d41641943736bd39b4d10d8ece915cd666aa
--- /dev/null
+++ b/services/audiotransport/test/fuzztest/sinkctrltransonchannelevent_fuzzer/BUILD.gn
@@ -0,0 +1,82 @@
+# Copyright (c) 2022 Huawei Device Co., Ltd.
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+#####################hydra-fuzz###################
+import("//build/config/features.gni")
+import("//build/test.gni")
+import("../../../../../distributedaudio.gni")
+
+##############################fuzztest##########################################
+ohos_fuzztest("SinkCtrlTransOnChannelEventFuzzTest") {
+  module_out_path = "${distributedaudio_fuzz_path}/sinkctrltransonchannelevent_fuzzer"
+  fuzz_config_file =
+      "${services_path}/audiotransport/test/fuzztest/sinkctrltransonchannelevent_fuzzer"
+
+  cflags = [
+    "-g",
+    "-O0",
+    "-Wno-unused-variable",
+    "-fno-omit-frame-pointer",
+  ]
+  sources = [ "sinkctrltransonchannelevent_fuzzer.cpp" ]
+
+  include_dirs = [
+    "include",
+    "${audio_client_path}/interface",
+    "${audio_client_path}/micclient/include",
+    "${audio_client_path}/spkclient/include",
+    "${audio_control_path}/controlsink/include",
+    "${audio_processor_path}/interface",
+    "${audio_transport_path}/interface",
+    "${audio_transport_path}/audioctrltransport/include",
+    "${audio_transport_path}/receiverengine/include",
+    "${audio_transport_path}/senderengine/include",
+    "${common_path}/dfx_utils/include",
+    "${common_path}/include",
+    "${innerkits_path}/native_cpp/audio_sink/include",
+    "${innerkits_path}/native_cpp/audio_source/include",
+    "${services_path}/audiomanager/managersink/include",
+    "${services_path}/common/audioeventcallback",
+    "${services_path}/common/audiodata/include",
+    "${services_path}/common/audioparam",
+  ]
+
+  deps =[ 
+        "${services_path}/audiomanager/servicesink:distributed_audio_sink",
+    ]
+
+  defines = [
+    "HI_LOG_ENABLE",
+    "DH_LOG_TAG=\"SinkServiceDumpFuzzTest\"",
+    "LOG_DOMAIN=0xD004130",
+  ]
+
+  external_deps = [
+    "c_utils:utils",
+    "cJSON:cjson",
+    "distributed_hardware_fwk:distributed_av_sender",
+    "distributed_hardware_fwk:distributedhardwareutils",
+    "ipc:ipc_core",
+    "safwk:system_ability_fwk",
+    "samgr:samgr_proxy",
+  ]
+
+  
+}
+
+###############################################################################
+group("fuzztest") {
+  testonly = true
+  deps = [ ":SinkCtrlTransOnChannelEventFuzzTest" ]
+}
+###############################################################################
diff --git a/services/audiotransport/test/fuzztest/sinkctrltransonchannelevent_fuzzer/corpus/init b/services/audiotransport/test/fuzztest/sinkctrltransonchannelevent_fuzzer/corpus/init
new file mode 100644
index 0000000000000000000000000000000000000000..8eb5a7d6eb6b7d71f0c70c244e5768d62bee6ac5
--- /dev/null
+++ b/services/audiotransport/test/fuzztest/sinkctrltransonchannelevent_fuzzer/corpus/init
@@ -0,0 +1,16 @@
+/*
+ * Copyright (c) 2022 Huawei Device Co., Ltd.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+FUZZ
\ No newline at end of file
diff --git a/services/audiotransport/test/fuzztest/sinkctrltransonchannelevent_fuzzer/project.xml b/services/audiotransport/test/fuzztest/sinkctrltransonchannelevent_fuzzer/project.xml
new file mode 100644
index 0000000000000000000000000000000000000000..6e8ad2cfde8f8bda4beb6cabbe7efd8bc3c54eec
--- /dev/null
+++ b/services/audiotransport/test/fuzztest/sinkctrltransonchannelevent_fuzzer/project.xml
@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (c) 2022 Huawei Device Co., Ltd.
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+<fuzz_config>
+  <fuzztest>
+    <!-- maximum length of a test input -->
+    <max_len>1000</max_len>
+    <!-- maximum total time in seconds to run the fuzzer -->
+    <max_total_time>300</max_total_time>
+    <!-- memory usage limit in Mb -->
+    <rss_limit_mb>4096</rss_limit_mb>
+  </fuzztest>
+</fuzz_config>
diff --git a/services/audiotransport/test/fuzztest/sinkctrltransonchannelevent_fuzzer/sinkservicedump_fuzzer.cpp b/services/audiotransport/test/fuzztest/sinkctrltransonchannelevent_fuzzer/sinkservicedump_fuzzer.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..cc472e72320fa207c31bf9237f7f2692fc439adf
--- /dev/null
+++ b/services/audiotransport/test/fuzztest/sinkctrltransonchannelevent_fuzzer/sinkservicedump_fuzzer.cpp
@@ -0,0 +1,62 @@
+/*
+ * Copyright (c) 2022 Huawei Device Co., Ltd.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+ #include <cstddef>
+ #include <cstdint>
+ 
+ #include "av_trans_message.h"
+ #include "av_trans_types.h"
+
+ #include <fuzzer/FuzzedDataProvider.h>
+ #include "daudio_sink_ctrl_trans.h"
+ #include "sinkctrltransonchannelevent.h"
+ 
+ #include "dlfcn.h"
+ 
+ #include "daudio_constants.h"
+ #include "daudio_errorcode.h"
+ #include "daudio_log.h"
+ #include "daudio_util.h"
+
+namespace OHOS {
+namespace DistributedHardware {
+void SinkCtrlTransOnChannelEventFuzzTest(const uint8_t* data, size_t size)
+{
+    if (data == nullptr || size == 0) {
+        return;
+    }
+    std::string devId = "devId";
+    std::string sessionName = "sessionName";
+    std::string peerSessName = "peerSessName";
+    auto sinkCtrlTransCb = std::make_shared<SinkCtrlTransOnChannelEventFuzzer>();
+    auto ctrlTrans = DaudioSinkCtrlTrans(devId, sessionName, peerSessName, sinkCtrlTransCb);
+    FuzzedDataProvider fdp(data, size);
+    AVTransEvent event;
+    event.content = fdp.ConsumeRandomLengthString();
+    event.peerDevId = fdp.ConsumeRandomLengthString();
+    event.type = static_cast<EventType>(fdp.ConsumeIntegral<uint32_t());
+    ctrlTrans.OnChannelEvent(event);
+}
+}
+}
+
+/* Fuzzer entry point */
+extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
+{
+    /* Run your code on data */
+    OHOS::DistributedHardware::SinkCtrlTransOnChannelEventFuzzTest(data, size);
+    return 0;
+}
+
diff --git a/services/audiotransport/test/fuzztest/sinkctrltransonchannelevent_fuzzer/sinkservicedump_fuzzer.h b/services/audiotransport/test/fuzztest/sinkctrltransonchannelevent_fuzzer/sinkservicedump_fuzzer.h
new file mode 100644
index 0000000000000000000000000000000000000000..3684a5d17c243d4ab2db378260e7b4d75b535b00
--- /dev/null
+++ b/services/audiotransport/test/fuzztest/sinkctrltransonchannelevent_fuzzer/sinkservicedump_fuzzer.h
@@ -0,0 +1,39 @@
+/*
+ * Copyright (c) 2022 Huawei Device Co., Ltd.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef SINKCTRLTRANSONCHANNELEVENT_FUZZER_H
+#define SINKCTRLTRANSONCHANNELEVENT_FUZZER_H
+
+#define FUZZ_PROJECT_NAME "sinkctrltransonchannelevent_fuzzer"
+#include "iaudio_ctrltrans_callback.h"
+namespace OHOS {
+namespace DistributedHardware {
+class SinkCtrlTransOnChannelEventFuzzer : public IAudioCtrlTransCallback {
+public:
+    SinkCtrlTransOnChannelEventFuzzer() = default;
+    ~SinkCtrlTransOnChannelEventFuzzer() = default;
+
+    void OnCtrlTransEvent(const AVTransEvent &event) override
+    {
+        (void)event;
+    }
+    void OnCtrlTransMessage(const std::shared_ptr<AVTransMessage> &message) override
+    {
+        (void)message;
+    }
+};
+}
+}
+#endif
\ No newline at end of file
diff --git a/services/audiotransport/test/fuzztest/sourcectrltransonchannelevent_fuzzer/BUILD.gn b/services/audiotransport/test/fuzztest/sourcectrltransonchannelevent_fuzzer/BUILD.gn
new file mode 100644
index 0000000000000000000000000000000000000000..e5d21f1646c415580768dd255b2d51b606193ee8
--- /dev/null
+++ b/services/audiotransport/test/fuzztest/sourcectrltransonchannelevent_fuzzer/BUILD.gn
@@ -0,0 +1,82 @@
+# Copyright (c) 2022 Huawei Device Co., Ltd.
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+#####################hydra-fuzz###################
+import("//build/config/features.gni")
+import("//build/test.gni")
+import("../../../../../distributedaudio.gni")
+
+##############################fuzztest##########################################
+ohos_fuzztest("SourceCtrlTransOnChannelEventFuzzTest") {
+  module_out_path = "${distributedaudio_fuzz_path}/sourcectrltransonchannelevent_fuzzer"
+  fuzz_config_file =
+      "${services_path}/audiotransport/test/fuzztest/sourcectrltransonchannelevent_fuzzer"
+
+  cflags = [
+    "-g",
+    "-O0",
+    "-Wno-unused-variable",
+    "-fno-omit-frame-pointer",
+  ]
+  sources = [ "sourcectrltransonchannelevent_fuzzer.cpp" ]
+
+  include_dirs = [
+    "include",
+    "${audio_client_path}/interface",
+    "${audio_client_path}/micclient/include",
+    "${audio_client_path}/spkclient/include",
+    "${audio_control_path}/controlsink/include",
+    "${audio_processor_path}/interface",
+    "${audio_transport_path}/interface",
+    "${audio_transport_path}/audioctrltransport/include",
+    "${audio_transport_path}/receiverengine/include",
+    "${audio_transport_path}/senderengine/include",
+    "${common_path}/dfx_utils/include",
+    "${common_path}/include",
+    "${innerkits_path}/native_cpp/audio_sink/include",
+    "${innerkits_path}/native_cpp/audio_source/include",
+    "${services_path}/audiomanager/managersink/include",
+    "${services_path}/common/audioeventcallback",
+    "${services_path}/common/audiodata/include",
+    "${services_path}/common/audioparam",
+  ]
+
+  deps =[ 
+        "${services_path}/audiomanager/servicesink:distributed_audio_sink",
+    ]
+
+  defines = [
+    "HI_LOG_ENABLE",
+    "DH_LOG_TAG=\"SinkServiceDumpFuzzTest\"",
+    "LOG_DOMAIN=0xD004130",
+  ]
+
+  external_deps = [
+    "c_utils:utils",
+    "cJSON:cjson",
+    "distributed_hardware_fwk:distributed_av_sender",
+    "distributed_hardware_fwk:distributedhardwareutils",
+    "ipc:ipc_core",
+    "safwk:system_ability_fwk",
+    "samgr:samgr_proxy",
+  ]
+
+  
+}
+
+###############################################################################
+group("fuzztest") {
+  testonly = true
+  deps = [ ":SourceCtrlTransOnChannelEventFuzzTest" ]
+}
+###############################################################################
diff --git a/services/audiotransport/test/fuzztest/sourcectrltransonchannelevent_fuzzer/corpus/init b/services/audiotransport/test/fuzztest/sourcectrltransonchannelevent_fuzzer/corpus/init
new file mode 100644
index 0000000000000000000000000000000000000000..8eb5a7d6eb6b7d71f0c70c244e5768d62bee6ac5
--- /dev/null
+++ b/services/audiotransport/test/fuzztest/sourcectrltransonchannelevent_fuzzer/corpus/init
@@ -0,0 +1,16 @@
+/*
+ * Copyright (c) 2022 Huawei Device Co., Ltd.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+FUZZ
\ No newline at end of file
diff --git a/services/audiotransport/test/fuzztest/sourcectrltransonchannelevent_fuzzer/project.xml b/services/audiotransport/test/fuzztest/sourcectrltransonchannelevent_fuzzer/project.xml
new file mode 100644
index 0000000000000000000000000000000000000000..6e8ad2cfde8f8bda4beb6cabbe7efd8bc3c54eec
--- /dev/null
+++ b/services/audiotransport/test/fuzztest/sourcectrltransonchannelevent_fuzzer/project.xml
@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (c) 2022 Huawei Device Co., Ltd.
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+<fuzz_config>
+  <fuzztest>
+    <!-- maximum length of a test input -->
+    <max_len>1000</max_len>
+    <!-- maximum total time in seconds to run the fuzzer -->
+    <max_total_time>300</max_total_time>
+    <!-- memory usage limit in Mb -->
+    <rss_limit_mb>4096</rss_limit_mb>
+  </fuzztest>
+</fuzz_config>
diff --git a/services/audiotransport/test/fuzztest/sourcectrltransonchannelevent_fuzzer/sinkservicedump_fuzzer.cpp b/services/audiotransport/test/fuzztest/sourcectrltransonchannelevent_fuzzer/sinkservicedump_fuzzer.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..3aa0f656d24f08cff29ea484eddff4d3e9fda7c0
--- /dev/null
+++ b/services/audiotransport/test/fuzztest/sourcectrltransonchannelevent_fuzzer/sinkservicedump_fuzzer.cpp
@@ -0,0 +1,62 @@
+/*
+ * Copyright (c) 2022 Huawei Device Co., Ltd.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+ #include <cstddef>
+ #include <cstdint>
+ 
+ #include "av_trans_message.h"
+ #include "av_trans_types.h"
+
+ #include <fuzzer/FuzzedDataProvider.h>
+ #include "daudio_sink_ctrl_trans.h"
+ #include "sourcectrltransonchannelevent.h"
+ 
+ #include "dlfcn.h"
+ 
+ #include "daudio_constants.h"
+ #include "daudio_errorcode.h"
+ #include "daudio_log.h"
+ #include "daudio_util.h"
+
+namespace OHOS {
+namespace DistributedHardware {
+void SourceCtrlTransOnChannelEventFuzzTest(const uint8_t* data, size_t size)
+{
+    if (data == nullptr || size == 0) {
+        return;
+    }
+    std::string devId = "devId";
+    std::string sessionName = "sessionName";
+    std::string peerSessName = "peerSessName";
+    auto sinkCtrlTransCb = std::make_shared<SourceCtrlTransOnChannelEventFuzzer>();
+    auto ctrlTrans = DaudioSourceCtrlTrans(devId, sessionName, peerSessName, sinkCtrlTransCb);
+    FuzzedDataProvider fdp(data, size);
+    AVTransEvent event;
+    event.content = fdp.ConsumeRandomLengthString();
+    event.peerDevId = fdp.ConsumeRandomLengthString();
+    event.type = static_cast<EventType>(fdp.ConsumeIntegral<uint32_t());
+    ctrlTrans.OnChannelEvent(event);
+}
+}
+}
+
+/* Fuzzer entry point */
+extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
+{
+    /* Run your code on data */
+    OHOS::DistributedHardware::SourceCtrlTransOnChannelEventFuzzTest(data, size);
+    return 0;
+}
+
diff --git a/services/audiotransport/test/fuzztest/sourcectrltransonchannelevent_fuzzer/sinkservicedump_fuzzer.h b/services/audiotransport/test/fuzztest/sourcectrltransonchannelevent_fuzzer/sinkservicedump_fuzzer.h
new file mode 100644
index 0000000000000000000000000000000000000000..e749978491d3ad9bb7c334cdb37c2abefb543b48
--- /dev/null
+++ b/services/audiotransport/test/fuzztest/sourcectrltransonchannelevent_fuzzer/sinkservicedump_fuzzer.h
@@ -0,0 +1,39 @@
+/*
+ * Copyright (c) 2022 Huawei Device Co., Ltd.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef SINKCTRLTRANSONCHANNELEVENT_FUZZER_H
+#define SINKCTRLTRANSONCHANNELEVENT_FUZZER_H
+
+#define FUZZ_PROJECT_NAME "sourcectrltransonchannelevent_fuzzer"
+#include "iaudio_ctrltrans_callback.h"
+namespace OHOS {
+namespace DistributedHardware {
+class SourceCtrlTransOnChannelEventFuzzer : public IAudioCtrlTransCallback {
+public:
+    SourceCtrlTransOnChannelEventFuzzer() = default;
+    ~SourceCtrlTransOnChannelEventFuzzer() = default;
+
+    void OnCtrlTransEvent(const AVTransEvent &event) override
+    {
+        (void)event;
+    }
+    void OnCtrlTransMessage(const std::shared_ptr<AVTransMessage> &message) override
+    {
+        (void)message;
+    }
+};
+}
+}
+#endif
\ No newline at end of file