diff --git a/APP_Framework/Framework/connection/4g/Make.defs b/APP_Framework/Framework/connection/4g/Make.defs
new file mode 100644
index 000000000..c355d00f7
--- /dev/null
+++ b/APP_Framework/Framework/connection/4g/Make.defs
@@ -0,0 +1,7 @@
+############################################################################
+# APP_Framework/Framework/connection/4g/Make.defs
+############################################################################
+ifneq ($(CONFIG_CONNECTION_ADAPTER_4G),)
+CONFIGURED_APPS += $(APPDIR)/../../../APP_Framework/Framework/connection/4g
+endif
+include $(wildcard $(APPDIR)/../../../APP_Framework/Framework/connection/4g/*/Make.defs)
diff --git a/APP_Framework/Framework/connection/4g/Makefile b/APP_Framework/Framework/connection/4g/Makefile
index 436b7d97f..f5c4a138e 100644
--- a/APP_Framework/Framework/connection/4g/Makefile
+++ b/APP_Framework/Framework/connection/4g/Makefile
@@ -1,7 +1,17 @@
-SRC_FILES := adapter_4g.c
+include $(KERNEL_ROOT)/.config
+ifeq ($(CONFIG_ADD_NUTTX_FETURES),y)
+    include $(APPDIR)/Make.defs
+    CSRCS += adapter_4g.c
+    include $(APPDIR)/Application.mk
 
-ifeq ($(CONFIG_ADAPTER_EC200T),y)
-	SRC_DIR += ec200t
 endif
 
-include $(KERNEL_ROOT)/compiler.mk
\ No newline at end of file
+ifeq ($(CONFIG_ADD_XIZI_FETURES),y)
+    SRC_FILES := adapter_4g.c
+
+    ifeq ($(CONFIG_ADAPTER_EC200T),y)
+        SRC_DIR += ec200t
+    endif
+
+    include $(KERNEL_ROOT)/compiler.mk
+endif
\ No newline at end of file
diff --git a/APP_Framework/Framework/connection/4g/adapter_4g.c b/APP_Framework/Framework/connection/4g/adapter_4g.c
index ab288a654..6dac34951 100644
--- a/APP_Framework/Framework/connection/4g/adapter_4g.c
+++ b/APP_Framework/Framework/connection/4g/adapter_4g.c
@@ -92,8 +92,8 @@ int Adapter4GTest(void)
 
 #ifdef ADAPTER_EC200T
     //Using Hang Xiao server to test 4G Socket connection
-    uint8 server_addr[64] = "101.68.82.219";
-    uint8 server_port[64] = "9898";
+    uint8 server_addr[64] = "120.76.100.197";
+    uint8 server_port[64] = "10002";
 
     adapter->socket.socket_id = 0;
 
diff --git a/APP_Framework/Framework/connection/4g/ec200t/Kconfig b/APP_Framework/Framework/connection/4g/ec200t/Kconfig
index 445db290d..71f692f27 100644
--- a/APP_Framework/Framework/connection/4g/ec200t/Kconfig
+++ b/APP_Framework/Framework/connection/4g/ec200t/Kconfig
@@ -32,6 +32,9 @@ if ADD_XIZI_FETURES
 endif
 
 if ADD_NUTTX_FETURES
+        config ADAPTER_EC200T_DRIVER
+                string "EC200T device uart driver path"
+                default "/dev/ttyS8"
 
 endif
 
diff --git a/APP_Framework/Framework/connection/4g/ec200t/Make.defs b/APP_Framework/Framework/connection/4g/ec200t/Make.defs
new file mode 100644
index 000000000..3bc3ea830
--- /dev/null
+++ b/APP_Framework/Framework/connection/4g/ec200t/Make.defs
@@ -0,0 +1,6 @@
+############################################################################
+# APP_Framework/Framework/connection/4g/ec200t/Make.defs
+############################################################################
+ifneq ($(CONFIG_ADAPTER_4G_EC200T),)
+CONFIGURED_APPS += $(APPDIR)/../../../APP_Framework/Framework/connection/4g/ec200t
+endif
diff --git a/APP_Framework/Framework/connection/4g/ec200t/Makefile b/APP_Framework/Framework/connection/4g/ec200t/Makefile
index 83a948038..5b2bff1fe 100644
--- a/APP_Framework/Framework/connection/4g/ec200t/Makefile
+++ b/APP_Framework/Framework/connection/4g/ec200t/Makefile
@@ -1,3 +1,14 @@
-SRC_FILES := ec200t.c
+include $(KERNEL_ROOT)/.config
+ifeq ($(CONFIG_ADD_NUTTX_FETURES),y)
+    include $(APPDIR)/Make.defs
+    CSRCS += ec200t.c
+    include $(APPDIR)/Application.mk
 
-include $(KERNEL_ROOT)/compiler.mk
+endif
+
+ifeq ($(CONFIG_ADD_XIZI_FETURES),y)
+    SRC_FILES := ec200t.c
+
+    include $(KERNEL_ROOT)/compiler.mk
+
+endif
diff --git a/APP_Framework/Framework/connection/4g/ec200t/ec200t.c b/APP_Framework/Framework/connection/4g/ec200t/ec200t.c
index 5ba720edc..c04cf1db2 100644
--- a/APP_Framework/Framework/connection/4g/ec200t/ec200t.c
+++ b/APP_Framework/Framework/connection/4g/ec200t/ec200t.c
@@ -36,6 +36,9 @@
 #define EC200T_CREG_REPLY           ",1"
 #define EC200T_CONNECT_REPLY        "CONNECT"
 
+#ifdef ADD_NUTTX_FETURES
+static void Ec200tPowerSet(void){ return; }
+#else
 static void Ec200tPowerSet(void)
 {
     int pin_fd;
@@ -69,6 +72,7 @@ static void Ec200tPowerSet(void)
 
     PrivTaskDelay(10000);
 }
+#endif
 
 static int Ec200tOpen(struct Adapter *adapter)
 {
@@ -82,7 +86,7 @@ static int Ec200tOpen(struct Adapter *adapter)
     /*step2: init AT agent*/
     if (!adapter->agent) {
         char *agent_name = "4G_uart_client";
-        if (EOK != InitATAgent(agent_name, adapter->fd, 512)) {
+        if (0 != InitATAgent(agent_name, adapter->fd, 512)) {
             printf("at agent init failed !\n");
             return -1;
         }
@@ -137,6 +141,10 @@ out:
     return ret;
 }
 
+
+#ifdef ADD_NUTTX_FETURES
+static int Ec200tIoctl(struct Adapter *adapter, int cmd, void *args){ return 0;}
+#else
 static int Ec200tIoctl(struct Adapter *adapter, int cmd, void *args)
 {
     if (OPE_INT != cmd) {
@@ -169,7 +177,77 @@ static int Ec200tIoctl(struct Adapter *adapter, int cmd, void *args)
     
     return 0;
 }
+#endif
 
+#ifdef ADD_NUTTX_FETURES
+static int Ec200tConnect(struct Adapter *adapter, enum NetRoleType net_role, const char *ip, const char *port, enum IpType ip_type)
+{
+    int ret = 0;
+    uint8_t ec200t_cmd[64];
+
+    AtSetReplyEndChar(adapter->agent, 0x4F, 0x4B);
+
+    /*step1: serial write "+++", quit transparent mode*/
+    ATOrderSend(adapter->agent, REPLY_TIME_OUT, NULL, "+++");
+
+    PrivTaskDelay(3000);
+    ATOrderSend(adapter->agent, REPLY_TIME_OUT, NULL, "ATE0\r\n");
+
+    /*step2: serial write "AT+CCID", get SIM ID*/
+    PrivTaskDelay(3000);
+    ATOrderSend(adapter->agent, REPLY_TIME_OUT, NULL, EC200T_GET_CCID_CMD);
+
+    /*step3: serial write "AT+CPIN?", check SIM status*/
+    PrivTaskDelay(3000);
+    ATOrderSend(adapter->agent, REPLY_TIME_OUT, NULL, EC200T_GET_CPIN_CMD);
+
+    /*step4: serial write "AT+CREG?", check whether registered to GSM net*/
+    PrivTaskDelay(3000);
+    ATOrderSend(adapter->agent, REPLY_TIME_OUT, NULL, EC200T_GET_CREG_CMD);
+
+    /*step5: serial write "AT+QICSGP", connect to China Mobile using ipv4 or ipv6*/
+    memset(ec200t_cmd, 0, sizeof(ec200t_cmd));
+
+    if (IPV4 == ip_type) {
+        strcpy(ec200t_cmd, "AT+QICSGP=1,1,\"CMNET\",\"\",\"\",1\r\n");
+    } else if (IPV6 == ip_type) {
+        strcpy(ec200t_cmd, "AT+QICSGP=1,2,\"CMNET\",\"\",\"\",1\r\n");
+    }
+    PrivTaskDelay(3000);
+    ATOrderSend(adapter->agent, REPLY_TIME_OUT, NULL, ec200t_cmd);
+
+    /*step6: serial write "AT+QICLOSE", close socket connect before open socket*/
+    memset(ec200t_cmd, 0, sizeof(ec200t_cmd));
+    sprintf(ec200t_cmd, EC200T_CLOSE_SOCKET_CMD, adapter->socket.socket_id);
+    PrivTaskDelay(3000);
+    ATOrderSend(adapter->agent, REPLY_TIME_OUT, NULL, ec200t_cmd);
+
+    /*step7: serial write "AT+QIDEACT", close TCP net before open socket*/
+    PrivTaskDelay(3000);
+    ATOrderSend(adapter->agent, REPLY_TIME_OUT, NULL, EC200T_DEACTIVE_PDP_CMD);
+
+    /*step8: serial write "AT+QIACT", open TCP net*/
+    PrivTaskDelay(3000);
+    ATOrderSend(adapter->agent, REPLY_TIME_OUT, NULL, EC200T_ACTIVE_PDP_CMD);
+
+    /*step9: serial write "AT+QIOPEN", connect socket using TCP*/
+    memset(ec200t_cmd, 0, sizeof(ec200t_cmd));
+    sprintf(ec200t_cmd, EC200T_OPEN_SOCKET_CMD, adapter->socket.socket_id);
+    strcat(ec200t_cmd, ",\"TCP\",\"");
+    strcat(ec200t_cmd, ip);
+    strcat(ec200t_cmd, "\",");
+    strcat(ec200t_cmd, port);
+    strcat(ec200t_cmd, ",0,2\r\n");
+
+    AtSetReplyEndChar(adapter->agent, 0x43, 0x54);
+    PrivTaskDelay(3000);
+    ATOrderSend(adapter->agent, REPLY_TIME_OUT, NULL, ec200t_cmd);
+
+    ADAPTER_DEBUG("Ec200t connect TCP done\n");
+
+    return 0;
+}
+#else
 static int Ec200tConnect(struct Adapter *adapter, enum NetRoleType net_role, const char *ip, const char *port, enum IpType ip_type)
 {
     int ret = 0;
@@ -257,10 +335,10 @@ out:
     Ec200tPowerSet();
     return -1;
 }
+#endif
 
 static int Ec200tSend(struct Adapter *adapter, const void *buf, size_t len)
 {
-    x_err_t result = EOK;
     if (adapter->agent) {
         EntmSend(adapter->agent, (const char *)buf, len);
     } else {
diff --git a/APP_Framework/Framework/connection/adapter_agent.c b/APP_Framework/Framework/connection/adapter_agent.c
index 8d75767ee..cd846129f 100755
--- a/APP_Framework/Framework/connection/adapter_agent.c
+++ b/APP_Framework/Framework/connection/adapter_agent.c
@@ -194,13 +194,15 @@ int AtCmdConfigAndCheck(ATAgentType agent, char *cmd, char *check)
         ret = -1;
         goto __exit;
     }
+
     ret = ATOrderSend(agent, REPLY_TIME_OUT, reply, cmd);
     if(ret < 0){
         printf("%s %d ATOrderSend failed.\n",__func__,__LINE__);
         ret = -1;
         goto __exit;
     }
-    // PrivTaskDelay(3000);
+
+    PrivTaskDelay(3000);
 
     result = GetReplyText(reply);
     if (!result) {
@@ -295,7 +297,7 @@ int EntmRecv(ATAgentType agent, char *rev_buffer, int buffer_len, int timeout_s)
     agent->receive_mode = ENTM_MODE;
     agent->read_len = buffer_len;
     PrivMutexAbandon(&agent->lock); 
-    // PrivTaskDelay(1000);
+    PrivTaskDelay(1000);
     if (PrivSemaphoreObtainWait(&agent->entm_rx_notice, &abstime)) {
         printf("wait sem[%d] timeout\n",agent->entm_rx_notice);
         return -ERROR;
@@ -424,10 +426,17 @@ int DeleteATAgent(ATAgentType agent)
         PrivClose(agent->fd);
     }
 
+#ifdef ADD_NUTTX_FETURES
+    if (agent->lock.sem.semcount > 0) {
+        printf("delete agent lock = %d\n",agent->lock.sem.semcount);
+        PrivMutexDelete(&agent->lock);
+    }
+#else
     if (agent->lock) {
         printf("delete agent lock = %d\n",agent->lock);
         PrivMutexDelete(&agent->lock);
     }
+#endif
 
     if (agent->entm_rx_notice) {
         printf("delete agent entm_rx_notice = %d\n",agent->entm_rx_notice);
diff --git a/APP_Framework/Framework/connection/at_agent.h b/APP_Framework/Framework/connection/at_agent.h
index 3267698cf..0148abbe8 100755
--- a/APP_Framework/Framework/connection/at_agent.h
+++ b/APP_Framework/Framework/connection/at_agent.h
@@ -52,8 +52,12 @@ struct ATAgent
     char *maintain_buffer;
     uint32 maintain_len;
     uint32 maintain_max;
-    
+
+#ifdef ADD_NUTTX_FETURES   
+    pthread_mutex_t lock;
+#else
     int lock;
+#endif
 
     ATReplyType reply;
     char reply_lr_end;
diff --git a/Ubiquitous/Nuttx_Fusion_XiUOS/app_match_nuttx/apps/nshlib/Kconfig b/Ubiquitous/Nuttx_Fusion_XiUOS/app_match_nuttx/apps/nshlib/Kconfig
index 7b7c97034..3c98cda38 100644
--- a/Ubiquitous/Nuttx_Fusion_XiUOS/app_match_nuttx/apps/nshlib/Kconfig
+++ b/Ubiquitous/Nuttx_Fusion_XiUOS/app_match_nuttx/apps/nshlib/Kconfig
@@ -655,6 +655,10 @@ config NSH_DISABLE_ADAPTER_LORATEST
 	bool "Disable sx1278 AdapterLoraTest."
 	default n
 
+config NSH_DISABLE_ADAPTER_4GTEST
+	bool "Disable ec200t Adapter4GTest."
+	default n
+
 config NSH_DISABLE_K210_FFT
 	bool "Disable the K210 fft device."
 	default n
diff --git a/Ubiquitous/Nuttx_Fusion_XiUOS/app_match_nuttx/apps/nshlib/nsh.h b/Ubiquitous/Nuttx_Fusion_XiUOS/app_match_nuttx/apps/nshlib/nsh.h
index f23773552..d46be3f42 100644
--- a/Ubiquitous/Nuttx_Fusion_XiUOS/app_match_nuttx/apps/nshlib/nsh.h
+++ b/Ubiquitous/Nuttx_Fusion_XiUOS/app_match_nuttx/apps/nshlib/nsh.h
@@ -1486,6 +1486,10 @@ int nsh_foreach_var(FAR struct nsh_vtbl_s *vtbl, nsh_foreach_var_t cb,
   int cmd_AdapterLoraTest(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv);
 #endif
 
+#if defined(CONFIG_ADAPTER_4G_EC200T) && !defined(CONFIG_NSH_DISABLE_ADAPTER_4GTEST)
+  int cmd_Adapter4GTest(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv);
+#endif
+
 #if defined(CONFIG_K210_FFT_TEST) && !defined(CONFIG_NSH_DISABLE_K210_FFT)
   int cmd_fft(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv);
 #endif
diff --git a/Ubiquitous/Nuttx_Fusion_XiUOS/app_match_nuttx/apps/nshlib/nsh_Applicationscmd.c b/Ubiquitous/Nuttx_Fusion_XiUOS/app_match_nuttx/apps/nshlib/nsh_Applicationscmd.c
index 68a5da9d4..326eb3d75 100644
--- a/Ubiquitous/Nuttx_Fusion_XiUOS/app_match_nuttx/apps/nshlib/nsh_Applicationscmd.c
+++ b/Ubiquitous/Nuttx_Fusion_XiUOS/app_match_nuttx/apps/nshlib/nsh_Applicationscmd.c
@@ -283,6 +283,17 @@ int cmd_AdapterLoraTest(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv)
 }
 #endif
 
+#if defined(CONFIG_ADAPTER_4G_EC200T) && !defined(CONFIG_NSH_DISABLE_ADAPTER_4GTEST)
+extern int Adapter4GTest(void);
+int cmd_Adapter4GTest(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv)
+{
+    nsh_output(vtbl, "Hello, world!\n");
+    FrameworkInit();
+    Adapter4GTest();
+    return OK;
+}
+#endif
+
 #if defined(CONFIG_K210_FFT_TEST) && !defined(CONFIG_NSH_DISABLE_K210_FFT)
 extern void nuttx_k210_fft_test(void);
 int cmd_fft(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv)
diff --git a/Ubiquitous/Nuttx_Fusion_XiUOS/app_match_nuttx/apps/nshlib/nsh_command.c b/Ubiquitous/Nuttx_Fusion_XiUOS/app_match_nuttx/apps/nshlib/nsh_command.c
index 8cd21e468..d44347b2d 100644
--- a/Ubiquitous/Nuttx_Fusion_XiUOS/app_match_nuttx/apps/nshlib/nsh_command.c
+++ b/Ubiquitous/Nuttx_Fusion_XiUOS/app_match_nuttx/apps/nshlib/nsh_command.c
@@ -658,6 +658,10 @@ static const struct cmdmap_s g_cmdmap[] =
   { "AdapterLoraTest",       cmd_AdapterLoraTest,       1, 1, "[Lora sx128 test.]" },
 #endif
 
+#if defined(CONFIG_ADAPTER_4G_EC200T) && !defined(CONFIG_NSH_DISABLE_ADAPTER_4GTEST)
+  { "Adapter4GTest",       cmd_Adapter4GTest,       1, 1, "[4G ec200t test.]" },
+#endif
+
 #if defined(CONFIG_K210_FFT_TEST) && !defined(CONFIG_NSH_DISABLE_K210_FFT)
   { "fft",       cmd_fft,       1, 1, "[K210 fft function.]" },
 #endif