diff --git a/interfaces/inner_api/native/audiomanager/include/audio_policy_interface.h b/interfaces/inner_api/native/audiomanager/include/audio_policy_interface.h
index 95b0bed518a3fc5d02abe7b3fa59736eb5b9eae9..fd40095bbb8b5c8c4f7891357e21bfbdc630c392 100644
--- a/interfaces/inner_api/native/audiomanager/include/audio_policy_interface.h
+++ b/interfaces/inner_api/native/audiomanager/include/audio_policy_interface.h
@@ -339,6 +339,13 @@ public:
      * @return int32_t
      */
     virtual int32_t GetRenderPosition(const std::string &device, uint32_t &delayValue) = 0;
+
+    /**
+     * @brief Send chr data of dsp to nearlink service.
+     * @param sleChrDspData chr data of dsp.
+     * @param len length of sleChrDspData.
+     */
+    virtual void OnSleDspChrDataSend(const std::string &sleChrDspData, uint32_t len) = 0;
 };
 } // namespace AudioStandard
 } // namespace OHOS
diff --git a/services/audio_policy/client/stub/include/sle_audio_operation_callback_stub_impl.h b/services/audio_policy/client/stub/include/sle_audio_operation_callback_stub_impl.h
index 28c188a78d7c3c0857be4e27c1ddb1690c1d8869..f416eef0f2b0ab91c255c07f68b9162b960e4c66 100644
--- a/services/audio_policy/client/stub/include/sle_audio_operation_callback_stub_impl.h
+++ b/services/audio_policy/client/stub/include/sle_audio_operation_callback_stub_impl.h
@@ -40,6 +40,7 @@ public:
         int32_t& ret) override;
     int32_t SendUserSelection(const std::string &device, uint32_t streamType, int32_t& ret) override;
     int32_t GetRenderPosition(const std::string &device, uint32_t &delayValue) override;
+    int32_t OnSleDspChrDataSend(const std::string &sleChrDspData, uint32_t len) override;
 private:
     std::mutex sleAudioOperationCallbackMutex_;
     std::weak_ptr<SleAudioOperationCallback> sleAudioOperationCallback_;
diff --git a/services/audio_policy/client/stub/src/sle_audio_operation_callback_stub_impl.cpp b/services/audio_policy/client/stub/src/sle_audio_operation_callback_stub_impl.cpp
index 11f58493510f3fa3c24e14ebb89c11d110ac98f7..cf87475d166e1a0978bc6bbcda78635f8c04e252 100644
--- a/services/audio_policy/client/stub/src/sle_audio_operation_callback_stub_impl.cpp
+++ b/services/audio_policy/client/stub/src/sle_audio_operation_callback_stub_impl.cpp
@@ -171,5 +171,14 @@ int32_t SleAudioOperationCallbackStubImpl::GetRenderPosition(const std::string &
     return sleAudioOperationCallback->GetRenderPosition(device, delayValue);
 }
 
+int32_t SleAudioOperationCallbackStubImpl::OnSleDspChrDataSend(const std::string &sleChrDspData, uint32_t len)
+{
+    std::unique_lock lock(sleAudioOperationCallbackMutex_);
+    std::shared_ptr<SleAudioOperationCallback> sleAudioOperationCallback = sleAudioOperationCallback_.lock();
+    CHECK_AND_RETURN_RET_LOG(sleAudioOperationCallback != nullptr, ERROR, "sleAudioOperationCallback_ is nullptr");
+    lock.unlock();
+    sleAudioOperationCallback->OnSleDspChrDataSend(sleChrDspData, len);
+    return SUCCESS;
+}
 } // namespace AudioStandard
 } // namespace OHOS
diff --git a/services/audio_policy/idl/IStandardSleAudioOperationCallback.idl b/services/audio_policy/idl/IStandardSleAudioOperationCallback.idl
index c37004fda9ba486b45953d2e117a46e1d071be6d..7f87ffeb15d0e163d6dc41f2a788c9a69eb0c573 100644
--- a/services/audio_policy/idl/IStandardSleAudioOperationCallback.idl
+++ b/services/audio_policy/idl/IStandardSleAudioOperationCallback.idl
@@ -29,4 +29,5 @@ interface IStandardSleAudioOperationCallback {
     void SetDeviceAbsVolume([in] String remoteAddr, [in] unsigned int volume, [in] unsigned int streamType, [out] int ret);
     void SendUserSelection([in] String device, [in] unsigned int streamType, [out] int ret);
     void GetRenderPosition([in] String device, [out] unsigned int delayValue);
+    void OnSleDspChrDataSend([in] String sleChrDspData, [in] unsigned int len);
 }
\ No newline at end of file
diff --git a/services/audio_policy/server/domain/device/src/pnp/audio_socket_thread.cpp b/services/audio_policy/server/domain/device/src/pnp/audio_socket_thread.cpp
index 75ed8cc239a1473b82bd79ab0fbe1ccfa8f4af54..76daa7ffa76a95932bb93582ce4337c8746e62d0 100644
--- a/services/audio_policy/server/domain/device/src/pnp/audio_socket_thread.cpp
+++ b/services/audio_policy/server/domain/device/src/pnp/audio_socket_thread.cpp
@@ -32,6 +32,11 @@
 #include "audio_policy_log.h"
 #include "audio_pnp_server.h"
 #include "audio_policy_server_handler.h"
+#include "sle_audio_device_manager.h"
+
+namespace {
+    #include "v5_0/audio_types.h"
+}
 
 namespace OHOS {
 namespace AudioStandard {
@@ -423,6 +428,25 @@ int32_t AudioSocketThread::AudioHDMIDetectDevice(struct AudioPnpUevent *audioPnp
     return SUCCESS;
 }
 
+int32_t AudioSocketThread::AudioSendSleChrDspData(struct AudioPnpUevent *audioPnpUevent)
+{
+    if (audioPnpUevent == nullptr || audioPnpUevent->name == nullptr) {
+        return HDF_ERR_INVALID_PARAM;
+    }
+
+    if (strncmp(audioPnpUevent->name, "sle_dsp_data", strlen("sle_dsp_data")) != 0) {
+        return HDF_ERR_INVALID_PARAM;
+    }
+
+    std::string ueventStr = audioPnpUevent->name;
+    auto state = ueventStr.substr(ueventStr.find("sle_dsp_data") + strlen("sle_dsp_data") + 1);
+
+    AUDIO_INFO_LOG("SleDspChrData:[%{public}s] len:[%{public}zu]", state.c_str(), state.length());
+    // callback of sle
+    SleAudioDeviceManager::GetInstance().OnSleDspChrDataSend(state, static_cast<uint32_t>(state.length()));
+    return SUCCESS;
+}
+
 bool AudioSocketThread::AudioPnpUeventParse(const char *msg, const ssize_t strLength)
 {
     struct AudioPnpUevent audioPnpUevent = {"", "", "", "", "", "", "", "", "", ""};
@@ -468,7 +492,8 @@ bool AudioSocketThread::AudioPnpUeventParse(const char *msg, const ssize_t strLe
         (AudioDpDetectDevice(&audioPnpUevent) == SUCCESS) ||
         (AudioAnahsDetectDevice(&audioPnpUevent) == SUCCESS) ||
         (AudioNnDetectDevice(&audioPnpUevent) == SUCCESS) ||
-        (AudioMicBlockDevice(&audioPnpUevent) == SUCCESS)) {
+        (AudioMicBlockDevice(&audioPnpUevent) == SUCCESS) ||
+        (AudioSendSleChrDspData(&audioPnpUevent) == SUCCESS)) {
         return true;
     }
 
diff --git a/services/audio_policy/server/domain/device/src/pnp/audio_socket_thread.h b/services/audio_policy/server/domain/device/src/pnp/audio_socket_thread.h
index 52f14e75bbd15a0243a26a28e97261fcb0c09e4e..cf3e878e094e400ffae593d725dd31ec8e1b87a9 100644
--- a/services/audio_policy/server/domain/device/src/pnp/audio_socket_thread.h
+++ b/services/audio_policy/server/domain/device/src/pnp/audio_socket_thread.h
@@ -20,7 +20,6 @@
 
 #include "hdf_device_desc.h"
 #include "hdf_types.h"
-#include "v5_0/audio_types.h"
 #include "audio_pnp_param.h"
 
 namespace OHOS {
@@ -50,6 +49,7 @@ private:
     static int32_t ReadAndScanDpName(const std::string &path, std::string &name);
     static int32_t AudioNnDetectDevice(struct AudioPnpUevent *audioPnpUevent);
     static int32_t AudioMicBlockDevice(struct AudioPnpUevent *audioPnpUevent);
+    static int32_t AudioSendSleChrDspData(struct AudioPnpUevent *audioPnpUevent);
 };
 
 } // namespace AudioStandard
diff --git a/services/audio_policy/server/domain/device/src/sle/sle_audio_device_manager.cpp b/services/audio_policy/server/domain/device/src/sle/sle_audio_device_manager.cpp
index 1b128364269c4d1bc18b380601745d75ae9ae53e..16456f22939620adb8b97c34a94387e598734073 100644
--- a/services/audio_policy/server/domain/device/src/sle/sle_audio_device_manager.cpp
+++ b/services/audio_policy/server/domain/device/src/sle/sle_audio_device_manager.cpp
@@ -149,6 +149,12 @@ int32_t SleAudioDeviceManager::GetRenderPosition(const std::string &device, uint
     return callback_->GetRenderPosition(device, delayValue);
 }
 
+void SleAudioDeviceManager::OnSleDspChrDataSend(const std::string &sleChrDspData, uint32_t len)
+{
+    CHECK_AND_RETURN_LOG(callback_ != nullptr, "callback is nullptr");
+    callback_->OnSleDspChrDataSend(sleChrDspData, len);
+}
+
 uint32_t SleAudioDeviceManager::GetSleStreamTypeByStreamUsage(StreamUsage streamUsage) const
 {
     for (const auto &pair : STREAM_USAGE_TO_SLE_STREAM_TYPE) {
diff --git a/services/audio_policy/server/domain/device/src/sle/sle_audio_device_manager.h b/services/audio_policy/server/domain/device/src/sle/sle_audio_device_manager.h
index bc0deb19687be7804612323fab047075607a30f3..ce6db2d9d089713e5264ac41881a7c34f2cae7d4 100644
--- a/services/audio_policy/server/domain/device/src/sle/sle_audio_device_manager.h
+++ b/services/audio_policy/server/domain/device/src/sle/sle_audio_device_manager.h
@@ -69,6 +69,7 @@ public:
     int32_t SetDeviceAbsVolume(const std::string &remoteAddr, uint32_t volume, uint32_t streamType) override;
     int32_t SendUserSelection(const std::string &device, uint32_t streamType) override;
     int32_t GetRenderPosition(const std::string &device, uint32_t &delayValue) override;
+    void OnSleDspChrDataSend(const std::string &sleChrDspData, uint32_t len) override;
 
     // Parameter Conversion Interface
     int32_t SetActiveDevice(const std::string &device, StreamUsage streamUsage);
diff --git a/services/audio_policy/test/unittest/audio_policy_service_unit_test/include/audio_policy_service_second_unit_test.h b/services/audio_policy/test/unittest/audio_policy_service_unit_test/include/audio_policy_service_second_unit_test.h
index b1e7804ad9d4bbdcfe4d8e4d7746cf7f82dd72c3..2e38a01a8490a187375f03c1eb35b8e53ceba176 100644
--- a/services/audio_policy/test/unittest/audio_policy_service_unit_test/include/audio_policy_service_second_unit_test.h
+++ b/services/audio_policy/test/unittest/audio_policy_service_unit_test/include/audio_policy_service_second_unit_test.h
@@ -95,6 +95,11 @@ public:
     {
         return SUCCESS;
     }
+
+    int32_t OnSleDspChrDataSend(const std::string &sleChrDspData, uint32_t len) override
+    {
+        return SUCCESS;
+    }
 };
 } // namespace AudioStandard
 } // namespace OHOS
diff --git a/services/audio_policy/test/unittest/audio_socket_thread_test/src/audio_socket_thread_test.cpp b/services/audio_policy/test/unittest/audio_socket_thread_test/src/audio_socket_thread_test.cpp
index b8bc147d1dc8b829299064bfe058967519a1ffd3..abf89ad8558ceffd6466201073e67b0d2e3b9bf4 100644
--- a/services/audio_policy/test/unittest/audio_socket_thread_test/src/audio_socket_thread_test.cpp
+++ b/services/audio_policy/test/unittest/audio_socket_thread_test/src/audio_socket_thread_test.cpp
@@ -1226,6 +1226,30 @@ HWTEST_F(AudioSocketThreadUnitTest, AudioNnDetectDevice_SendNnStateChangeCallbac
     EXPECT_EQ(audioSocketThread_.AudioNnDetectDevice(&audioPnpUevent), HDF_ERR_INVALID_PARAM);
 }
 
+/**
+ * @tc.name  : AudioSendSleChrDspData_InvalidParam_Test
+ * @tc.number: Audio_AudioSocketThread_AudioSendSleChrDspData_001
+ * @tc.desc  : Test AudioSendSleChrDspData function with invalid parameters.
+ */
+HWTEST_F(AudioSocketThreadUnitTest, AudioSendSleChrDspData_InvalidParam_Test, TestSize.Level2)
+{
+    struct AudioPnpUevent audioPnpUevent;
+    audioPnpUevent.name = "nearlink_dsp_data";
+    EXPECT_EQ(audioSocketThread_.AudioSendSleChrDspData(&audioPnpUevent), HDF_ERR_INVALID_PARAM);
+}
+ 
+/**
+ * @tc.name  : AudioSendSleChrDspData_ValidParam_Test
+ * @tc.number: Audio_AudioSocketThread_AudioSendSleChrDspData_002
+ * @tc.desc  : Test AudioSendSleChrDspData function with valid parameters.
+ */
+HWTEST_F(AudioSocketThreadUnitTest, AudioSendSleChrDspData_ValidParam_Test, TestSize.Level2)
+{
+    struct AudioPnpUevent audioPnpUevent;
+    audioPnpUevent.name = "sle_dsp_data600";
+    EXPECT_EQ(audioSocketThread_.AudioSendSleChrDspData(&audioPnpUevent), SUCCESS);
+}
+
 /**
  * @tc.name  : AudioPnpUeventParse_Test_01
  * @tc.number: Audio_AudioPnpUeventParse_001
diff --git a/services/audio_policy/test/unittest/sle_audio_device_manager_unit_test/include/sle_audio_device_manager_unit_test.h b/services/audio_policy/test/unittest/sle_audio_device_manager_unit_test/include/sle_audio_device_manager_unit_test.h
index 82f13efaa734fd035305940bfafb2ea73d14d200..f5dedaed45350563969fa2aab9295530a6245c0a 100644
--- a/services/audio_policy/test/unittest/sle_audio_device_manager_unit_test/include/sle_audio_device_manager_unit_test.h
+++ b/services/audio_policy/test/unittest/sle_audio_device_manager_unit_test/include/sle_audio_device_manager_unit_test.h
@@ -97,6 +97,11 @@ public:
     {
         return SUCCESS;
     }
+
+    int32_t OnSleDspChrDataSend(const std::string &sleChrDspData, uint32_t len) override
+    {
+        return SUCCESS;
+    }
 };
 
 } // namespace AudioStandard
diff --git a/services/audio_policy/test/unittest/sle_audio_device_manager_unit_test/src/sle_audio_device_manager_unit_test.cpp b/services/audio_policy/test/unittest/sle_audio_device_manager_unit_test/src/sle_audio_device_manager_unit_test.cpp
index 2539988b01a8193abb3a132cbb7684f54ab2a2a8..83e9f788b9b215c8becab36a73ae7e20b187dc1e 100644
--- a/services/audio_policy/test/unittest/sle_audio_device_manager_unit_test/src/sle_audio_device_manager_unit_test.cpp
+++ b/services/audio_policy/test/unittest/sle_audio_device_manager_unit_test/src/sle_audio_device_manager_unit_test.cpp
@@ -1219,5 +1219,24 @@ HWTEST(SleAudioDeviceManagerUnitTest, GetVolumeLevelByVolumeType_003, TestSize.L
     EXPECT_EQ(ret, -1);
 }
 
+/**
+ * @tc.name  : Test OnSleDspChrDataSend
+ * @tc.number: OnSleDspChrDataSend_001
+ * @tc.desc  : Test SleAudioDeviceManager::OnSleDspChrDataSend
+ */
+HWTEST(SleAudioDeviceManagerUnitTest, OnSleDspChrDataSend_001, TestSize.Level1)
+{
+    std::shared_ptr<SleAudioDeviceManager> sleAudioDeviceManager_ =
+        std::make_shared<SleAudioDeviceManager>();
+    sptr<IStandardSleAudioOperationCallbackTest> callback =
+        new(std::nothrow) IStandardSleAudioOperationCallbackTest();
+    sleAudioDeviceManager_->SetSleAudioOperationCallback(callback);
+    std::string data = "DspChrData";
+    uint32_t len = data.size();
+
+    sleAudioDeviceManager_->OnSleDspChrDataSend(data, len);
+    EXPECT_EQ(0, SUCCESS);
+}
+
 } // namespace AudioStandard
 } // namespace OHOS
\ No newline at end of file