diff --git a/services/distributedhardwarefwkservice/src/hdfoperate/hdf_operate.cpp b/services/distributedhardwarefwkservice/src/hdfoperate/hdf_operate.cpp
index e465fee177a96b55efefe95f43dd962b7149f3fe..dd660855ff341141ea82b232d6addc34e6ebfb14 100644
--- a/services/distributedhardwarefwkservice/src/hdfoperate/hdf_operate.cpp
+++ b/services/distributedhardwarefwkservice/src/hdfoperate/hdf_operate.cpp
@@ -156,6 +156,10 @@ int32_t HdfOperateManager::UnLoadDistributedHDF(DHType dhType)
 
 int32_t HdfOperateManager::AddDeathRecipient(DHType dhType, sptr<IRemoteObject> &remote)
 {
+    if (remote == nullptr) {
+        DHLOGE("remote ptr is null.");
+        return ERR_DH_FWK_POINTER_IS_NULL;
+    }
     DHLOGI("Add death recipient begin, dhType = %{public}#X!", dhType);
     bool ret = false;
     switch (dhType) {
@@ -179,6 +183,10 @@ int32_t HdfOperateManager::AddDeathRecipient(DHType dhType, sptr<IRemoteObject>
 
 int32_t HdfOperateManager::RemoveDeathRecipient(DHType dhType, sptr<IRemoteObject> &remote)
 {
+    if (remote == nullptr) {
+        DHLOGE("remote ptr is null.");
+        return ERR_DH_FWK_POINTER_IS_NULL;
+    }
     DHLOGI("Remove death recipient begin, dhType = %{public}#X!", dhType);
     bool ret = false;
     switch (dhType) {
diff --git a/services/distributedhardwarefwkservice/test/unittest/common/hdfoperate/BUILD.gn b/services/distributedhardwarefwkservice/test/unittest/common/hdfoperate/BUILD.gn
index de452ff4ce5a6debfcad57c111a4d6806b034704..0faba3495bc3d2d97373eb528193dda882d35076 100644
--- a/services/distributedhardwarefwkservice/test/unittest/common/hdfoperate/BUILD.gn
+++ b/services/distributedhardwarefwkservice/test/unittest/common/hdfoperate/BUILD.gn
@@ -21,6 +21,7 @@ config("module_private_config") {
   include_dirs = [
     "${av_trans_path}/common/include",
     "${innerkits_path}/include",
+    "${innerkits_path}/include/ipc",
     "${utils_path}/include",
     "${utils_path}/include/log",
     "${utils_path}/include/eventbus",
@@ -40,6 +41,7 @@ ohos_unittest("HdfOperateTest") {
   configs = [ ":module_private_config" ]
 
   deps = [
+    "${innerkits_path}:libdhfwk_sdk",
     "${services_path}/distributedhardwarefwkservice:distributedhardwarefwksvr",
   ]
 
diff --git a/services/distributedhardwarefwkservice/test/unittest/common/hdfoperate/hdf_operate_test.cpp b/services/distributedhardwarefwkservice/test/unittest/common/hdfoperate/hdf_operate_test.cpp
index 1a2459c42b51bb4a7c2c73e78975f290ae3b5e30..7cb3eb48f53db796362cee7da2aeb4ad1b3d0365 100644
--- a/services/distributedhardwarefwkservice/test/unittest/common/hdfoperate/hdf_operate_test.cpp
+++ b/services/distributedhardwarefwkservice/test/unittest/common/hdfoperate/hdf_operate_test.cpp
@@ -13,12 +13,15 @@
  * limitations under the License.
  */
 
+#include "hdf_operate.h"
+
 #include <gtest/gtest.h>
+#include "iremote_stub.h"
 
 #include "component_loader.h"
 #include "distributed_hardware_errno.h"
 #include "distributed_hardware_log.h"
-#include "hdf_operate.h"
+#include "publisher_listener_stub.h"
 
 using namespace testing;
 using namespace testing::ext;
@@ -31,6 +34,17 @@ public:
     static void TearDownTestCase(void);
     void SetUp();
     void TearDown();
+
+    class TestPublisherListenerStub : public OHOS::DistributedHardware::PublisherListenerStub {
+    public:
+        TestPublisherListenerStub() = default;
+        virtual ~TestPublisherListenerStub() = default;
+        void OnMessage(const DHTopic topic, const std::string& message)
+        {
+            (void)topic;
+            (void)message;
+        }
+    };
 };
 
 constexpr int32_t TEST_COMP_SINK_SA_ID = 4804;
@@ -230,5 +244,33 @@ HWTEST_F(HdfOperateTest, RigidReleaseSourcePtr_001, TestSize.Level1)
     HdfOperateManager::GetInstance().sourceHandlerDataMap_.erase(DHType::AUDIO);
     EXPECT_EQ(ERR_DH_FWK_LOADER_DLCLOSE_FAIL, ret);
 }
+
+HWTEST_F(HdfOperateTest, AddDeathRecipient_001, TestSize.Level1)
+{
+    sptr<IRemoteObject> remote = nullptr;
+    auto ret = HdfOperateManager::GetInstance().AddDeathRecipient(DHType::UNKNOWN, remote);
+    EXPECT_EQ(ERR_DH_FWK_POINTER_IS_NULL, ret);
+}
+
+HWTEST_F(HdfOperateTest, AddDeathRecipient_002, TestSize.Level1)
+{
+    sptr<IRemoteObject> remote(new TestPublisherListenerStub());
+    auto ret = HdfOperateManager::GetInstance().AddDeathRecipient(DHType::UNKNOWN, remote);
+    EXPECT_EQ(ERR_DH_FWK_NO_HDF_SUPPORT, ret);
+}
+
+HWTEST_F(HdfOperateTest, RemoveDeathRecipient_001, TestSize.Level1)
+{
+    sptr<IRemoteObject> remote = nullptr;
+    auto ret = HdfOperateManager::GetInstance().RemoveDeathRecipient(DHType::UNKNOWN, remote);
+    EXPECT_EQ(ERR_DH_FWK_POINTER_IS_NULL, ret);
+}
+
+HWTEST_F(HdfOperateTest, RemoveDeathRecipient_002, TestSize.Level1)
+{
+    sptr<IRemoteObject> remote(new TestPublisherListenerStub());
+    auto ret = HdfOperateManager::GetInstance().RemoveDeathRecipient(DHType::UNKNOWN, remote);
+    EXPECT_EQ(ERR_DH_FWK_NO_HDF_SUPPORT, ret);
+}
 } // namespace DistributedHardware
 } // namespace OHOS