diff --git a/adapter/appspawn_ace.cpp b/adapter/appspawn_ace.cpp
index debbbd4bd85b52b3f47545e4316e949a33b65d4f..7a2974edaf3868fbb423359e0f72453120d37c4f 100644
--- a/adapter/appspawn_ace.cpp
+++ b/adapter/appspawn_ace.cpp
@@ -38,6 +38,23 @@ void RunChildProcessor(AppSpawnContent *content, AppSpawnClient *client)
 {
     APPSPAWN_LOGI("AppExecFwk::MainThread::Start");
 #ifndef APPSPAWN_TEST
-    OHOS::AppExecFwk::MainThread::Start();
+    if (client->flags == UI_SERVICE_DIALOG) {
+        APPSPAWN_LOGI("UiServiceDialogImpl dlopen and call InitAceDialog()");
+        constexpr char libName[] = "libuiservicedialog.z.so";
+        constexpr char funName[] = "OHOS_ACE_InitDialog";
+        void* libHandle = dlopen(libName, RTLD_LAZY);
+        if (libHandle == nullptr) {
+            APPSPAWN_LOGE("Failed to open %s, error: %s", libName, dlerror());
+            return;
+        }
+        auto func = reinterpret_cast<void(*)()>(dlsym(libHandle, funName));
+        if (func == nullptr) {
+            APPSPAWN_LOGE("Failed to get func %s, error: %s", funName, dlerror());
+            return;
+        }
+        func();
+    } else {
+        OHOS::AppExecFwk::MainThread::Start();
+    }
 #endif
 }
diff --git a/common/appspawn_server.c b/common/appspawn_server.c
index 7d27d8ea1ae9cfc50424ebe0edc30f1e0ebc5919..d7685b3244d9ac1ea81aa5d4d8c6a76927a863fa 100644
--- a/common/appspawn_server.c
+++ b/common/appspawn_server.c
@@ -50,7 +50,7 @@ int DoStartApp(struct AppSpawnContent_ *content, AppSpawnClient *client, char *l
     APPSPAWN_LOGI("DoStartApp id %d longProcNameLen %u", client->id, longProcNameLen);
     int32_t ret = 0;
 
-    if (content->setAppSandbox) {
+    if (client->flags != UI_SERVICE_DIALOG && content->setAppSandbox) {
         ret = content->setAppSandbox(content, client);
         APPSPAWN_CHECK(ret == 0, NotifyResToParent(content, client, ret);
             return ret, "Failed to set app sandbox");
diff --git a/common/appspawn_server.h b/common/appspawn_server.h
index 7169347b4cbafab349f5030fa4584c4e53450853..00c5da3dd4fd3aa6e58dd78c8f11ff3303a07fdb 100644
--- a/common/appspawn_server.h
+++ b/common/appspawn_server.h
@@ -36,6 +36,7 @@ extern "C" {
 #define WAIT_DELAY_US (100 * 1000)  // 100ms
 #define GID_FILE_ACCESS 1006  // only used for ExternalFileManager.hap
 #define GID_USER_DATA_RW 1008
+#define UI_SERVICE_DIALOG 0x10
 
 typedef struct AppSpawnClient_ {
     uint32_t id;
diff --git a/standard/appspawn_service.c b/standard/appspawn_service.c
index da4630428d9f9c2453c6f5931827f72e611dd702..8d35d71e1af57b96d9a6eda227c58c3ad5a61f8c 100644
--- a/standard/appspawn_service.c
+++ b/standard/appspawn_service.c
@@ -226,7 +226,7 @@ static void HandleSpecial(AppSpawnClientExt *appProperty)
             appProperty->property.gidCount++;
         }
     }
-    
+
     // special handle bundle name medialibrary and scanner
     const char *specialBundleNames[] = {
         "com.ohos.medialibrary.medialibrarydata"
@@ -367,6 +367,7 @@ APPSPAWN_STATIC void OnReceiveRequest(const TaskHandle taskHandle, const uint8_t
     APPSPAWN_LOGI("OnReceiveRequest client.id %d appProperty %d processname %s buffLen %d flags 0x%x",
         appProperty->client.id, appProperty->property.uid, appProperty->property.processName,
         buffLen, appProperty->property.flags);
+    appProperty->client.flags = appProperty->property.flags;
     fcntl(appProperty->fd[0], F_SETFL, O_NONBLOCK);
 
     pid_t pid = 0;