diff --git a/components/mobile/luat_lib_mobile.c b/components/mobile/luat_lib_mobile.c
index 6eaef55b..486cceb9 100644
--- a/components/mobile/luat_lib_mobile.c
+++ b/components/mobile/luat_lib_mobile.c
@@ -1055,6 +1055,8 @@ static const rotable_Reg_t reg_mobile[] = {
     {"CONF_FAKE_CELL_BARTIME",        ROREG_INT(MOBILE_CONF_FAKE_CELL_BARTIME)},
     //@const CONF_RESET_TO_FACTORY number 删除已保存的协议栈参数，重启后会使用默认配置
     {"CONF_RESET_TO_FACTORY",        ROREG_INT(MOBILE_CONF_RESET_TO_FACTORY)},
+    //@const CONF_USB_ETHERNET number 蜂窝网络模块的usb以太网卡控制，bit0开关1,开0关，bit1模式1NAT,0独立IP，bit2协议1ECM,0RNDIS，飞行模式里设置
+    {"CONF_USB_ETHERNET",        ROREG_INT(MOBILE_CONF_USB_ETHERNET)},
 	//@const PIN_VERIFY number 验证PIN码操作
 	{"PIN_VERIFY",              ROREG_INT(LUAT_SIM_PIN_VERIFY)},
 	//@const PIN_CHANGE number 更换PIN码操作
diff --git a/components/mobile/luat_mobile.h b/components/mobile/luat_mobile.h
index b8ade489..f54383ce 100644
--- a/components/mobile/luat_mobile.h
+++ b/components/mobile/luat_mobile.h
@@ -838,6 +838,7 @@ enum
 	MOBILE_CONF_SIM_WC_MODE,
 	MOBILE_CONF_FAKE_CELL_BARTIME,
 	MOBILE_CONF_RESET_TO_FACTORY,
+	MOBILE_CONF_USB_ETHERNET,
 };
 
 uint32_t luat_mobile_sim_write_counter(void);
diff --git a/demo/mobile/main.lua b/demo/mobile/main.lua
index cee24a67..8eaaf9ac 100644
--- a/demo/mobile/main.lua
+++ b/demo/mobile/main.lua
@@ -55,7 +55,7 @@ sys.taskInit(function()
     end
 	-- mobile.vsimInit()
 	-- mobile.flymode(nil,true)
-	- -mobile.vsimOnOff(true)
+	-- mobile.vsimOnOff(true)
 	-- mobile.flymode(nil,false)
     -- mobile.apn(0,2,"") -- 使用默认APN激活CID2
     -- mobile.rtime(3) -- 在无数据交互时，RRC 3秒后自动释放
diff --git a/demo/vsim/main.lua b/demo/vsim/main.lua
new file mode 100644
index 00000000..b495a9dc
--- /dev/null
+++ b/demo/vsim/main.lua
@@ -0,0 +1,91 @@
+
+-- LuaTools需要PROJECT和VERSION这两个信息
+PROJECT = "vsimdemo"
+VERSION = "1.0.0"
+
+log.info("main", PROJECT, VERSION)
+
+-- sys库是标配
+_G.sys = require("sys")
+mobile.config(mobile.USB_ETHERNET, 3)
+mobile.vsimInit()
+mobile.flymode(nil,true)
+mobile.vsimOnOff(true)
+mobile.flymode(nil,false)
+
+sys.taskInit(function()
+
+	if rtos.bsp() == "UIS8850BM" then
+		sys.wait(2000)
+	end
+
+	log.info("status", mobile.status())
+    local band = zbuff.create(40)
+    local band1 = zbuff.create(40)
+    mobile.getBand(band)
+    log.info("当前使用的band:")
+    for i=0,band:used()-1 do
+        log.info("band", band[i])
+    end
+
+	log.info("status", mobile.status())
+    sys.wait(2000)
+    while 1 do
+        log.info("imei", mobile.imei())
+        log.info("imsi", mobile.imsi())
+        local sn = mobile.sn()
+        if sn then
+            log.info("sn",   sn:toHex())
+        end
+		log.info("status", mobile.status())
+        log.info("iccid", mobile.iccid())
+        log.info("csq", mobile.csq()) -- 4G模块的CSQ并不能完全代表强度
+        log.info("rssi", mobile.rssi()) -- 需要综合rssi/rsrq/rsrp/snr一起判断
+        log.info("rsrq", mobile.rsrq())
+        log.info("rsrp", mobile.rsrp())
+        log.info("snr", mobile.snr())
+        log.info("simid", mobile.simid()) -- 这里是获取当前SIM卡槽
+        log.info("apn", mobile.apn(0,1))
+        log.info("ip", socket.localIP())
+		log.info("lua", rtos.meminfo())
+        -- sys内存
+        log.info("sys", rtos.meminfo("sys"))
+        sys.wait(15000)
+    end
+end)
+
+-- 基站数据的查询
+
+-- 订阅式, 模块本身会周期性查询基站信息,但通常不包含临近小区
+sys.subscribe("CELL_INFO_UPDATE", function()
+    log.info("cell", json.encode(mobile.getCellInfo()))
+end)
+
+-- 轮询式, 包含临近小区信息，这是手动搜索，和上面的自动搜索冲突，开启一个就行
+sys.taskInit(function()
+    sys.wait(15000)
+	mobile.config(mobile.CONF_SIM_WC_MODE, 2)
+    while 1 do
+        mobile.reqCellInfo(10)
+        sys.wait(11000)
+        log.info("cell", json.encode(mobile.getCellInfo()))
+		mobile.config(mobile.CONF_SIM_WC_MODE, 2)
+    end
+end)
+
+-- 获取sim卡的状态
+
+sys.subscribe("SIM_IND", function(status, value)
+    log.info("sim status", status)
+    if status == 'GET_NUMBER' then
+        log.info("number", mobile.number(0))
+    end
+	if status == "SIM_WC" then
+        log.info("sim", "write counter", value)
+    end
+end)
+
+-- 用户代码已结束---------------------------------------------
+-- 结尾总是这一句
+sys.run()
+-- sys.run()之后后面不要加任何语句!!!!!