diff --git a/av_transport/av_trans_engine/av_receiver/src/av_audio_receiver_engine.cpp b/av_transport/av_trans_engine/av_receiver/src/av_audio_receiver_engine.cpp
index a9af8c9c5ac0c5d7a1c155bd386e2234c638e2e4..794cd95810adc7689ac8a5881d2075c81d307983 100644
--- a/av_transport/av_trans_engine/av_receiver/src/av_audio_receiver_engine.cpp
+++ b/av_transport/av_trans_engine/av_receiver/src/av_audio_receiver_engine.cpp
@@ -251,9 +251,6 @@ int32_t AVAudioReceiverEngine::Release()
     isInitialized_ = false;
     pipeline_ = nullptr;
     dhFwkKit_ = nullptr;
-    avInput_ = nullptr;
-    audioDecoder_ = nullptr;
-    avOutput_ = nullptr;
     ctlCtrCallback_ = nullptr;
     SetCurrentState(StateId::IDLE);
     return DH_AVT_SUCCESS;
diff --git a/av_transport/av_trans_engine/av_sender/src/av_audio_sender_engine.cpp b/av_transport/av_trans_engine/av_sender/src/av_audio_sender_engine.cpp
index bb73edf7de2a0aeeb1915cc129f6b082f98dddbd..f87c9b58bec0a888143f225e8c3b1537550edef3 100644
--- a/av_transport/av_trans_engine/av_sender/src/av_audio_sender_engine.cpp
+++ b/av_transport/av_trans_engine/av_sender/src/av_audio_sender_engine.cpp
@@ -264,9 +264,6 @@ int32_t AVAudioSenderEngine::Release()
     isInitialized_ = false;
     pipeline_ = nullptr;
     dhFwkKit_ = nullptr;
-    avInput_ = nullptr;
-    encoderFilter_ = nullptr;
-    avOutput_ = nullptr;
     senderCallback_ = nullptr;
     ctlCenCallback_ = nullptr;
     SetCurrentState(StateId::IDLE);