diff --git a/distributedaudio.gni b/distributedaudio.gni
index 2227a8bab4555b89dc8e3d52df9966a61ac215eb..264438a52026950b02519b8825846ad049738092 100644
--- a/distributedaudio.gni
+++ b/distributedaudio.gni
@@ -45,7 +45,3 @@ innerkits_path = "${distributedaudio_path}/interfaces/inner_kits"
 distributedaudio_fuzz_path = "distributed_audio/distributed_audio"
 
 build_flags = [ "-Werror" ]
-
-declare_args() {
-  distributed_audio_extension = false
-}
diff --git a/services/audiomanager/managersink/include/daudio_sink_dev.h b/services/audiomanager/managersink/include/daudio_sink_dev.h
index fa5f34a0a7023aba9caf92fe088a9d23b1cb44d7..e97cf96bdbb6b66abf854d09f91c636815549a01 100644
--- a/services/audiomanager/managersink/include/daudio_sink_dev.h
+++ b/services/audiomanager/managersink/include/daudio_sink_dev.h
@@ -33,11 +33,6 @@
 #include "i_av_engine_provider.h"
 #include "i_av_receiver_engine_callback.h"
 
-#ifdef DAUDIO_SUPPORT_DIRECT
-#include "direct_dmic_client.h"
-#include "direct_dspeaker_client.h"
-#endif
-
 using json = nlohmann::json;
 
 namespace OHOS {
diff --git a/services/audiomanager/servicesink/BUILD.gn b/services/audiomanager/servicesink/BUILD.gn
index b93b70744d344180e7792bdb92c59d963a8d9750..2c6f68cf0fbac1aebce01eff2e91617935f83751 100755
--- a/services/audiomanager/servicesink/BUILD.gn
+++ b/services/audiomanager/servicesink/BUILD.gn
@@ -63,13 +63,6 @@ ohos_shared_library("distributed_audio_sink") {
     "${softbusadapter_path}/include",
   ]
 
-  if (distributed_audio_extension) {
-    include_dirs += [
-      "${distributedaudio_ext_path}/services/audioclient/directmicclient/include",
-      "${distributedaudio_ext_path}/services/audioclient/directspkclient/include",
-    ]
-  }
-
   sources = [
     "${audio_client_path}/micclient/src/dmic_client.cpp",
     "${audio_client_path}/spkclient/src/dspeaker_client.cpp",
@@ -85,13 +78,6 @@ ohos_shared_library("distributed_audio_sink") {
     "src/daudio_sink_stub.cpp",
   ]
 
-  if (distributed_audio_extension) {
-    sources += [
-      "${distributedaudio_ext_path}/services/audioclient/directmicclient/src/direct_dmic_client.cpp",
-      "${distributedaudio_ext_path}/services/audioclient/directspkclient/src/direct_dspeaker_client.cpp",
-    ]
-  }
-
   deps = [
     "${audio_transport_path}/decodetransport:distributed_audio_decode_transport",
     "${audio_transport_path}/encodetransport:distributed_audio_encode_transport",
@@ -121,10 +107,6 @@ ohos_shared_library("distributed_audio_sink") {
     "samgr:samgr_proxy",
   ]
 
-  if (distributed_audio_extension) {
-    cflags = [ "-DDAUDIO_SUPPORT_DIRECT" ]
-  }
-
   defines = [
     "HI_LOG_ENABLE",
     "LOG_DOMAIN=0xD004100",