diff --git a/HDFwear/Tools/BleMessage+Function.swift b/HDFwear/Tools/BleMessage+Function.swift
index 0d943cb..cc16016 100644
--- a/HDFwear/Tools/BleMessage+Function.swift
+++ b/HDFwear/Tools/BleMessage+Function.swift
@@ -13,6 +13,11 @@ extension BleMessage {
         return createDataPacket(key: .response, bytes: bytes)
     }
     
+    func getQueryDeviceInfoCmd(queryItems: [UInt8]) -> Data {
+        let bytes: [UInt8] = [UInt8(queryItems.count)] + queryItems
+        return createDataPacket(key: .setTimeFormat, bytes: bytes)
+    }
+    
     func getTimeCmd() -> Data {
         let date = DateInRegion().date
         let timeBytes: [UInt8] = [UInt8(date.year%100), UInt8(date.month), UInt8(date.day), UInt8(date.hour), UInt8(date.minute), UInt8(date.second)]
diff --git a/HDFwear/Tools/Bluetooth+Types.swift b/HDFwear/Tools/Bluetooth+Types.swift
index aeed09d..8eec953 100644
--- a/HDFwear/Tools/Bluetooth+Types.swift
+++ b/HDFwear/Tools/Bluetooth+Types.swift
@@ -116,7 +116,7 @@ enum SetCmd: UInt8 {
 
 enum NewCmd: UInt8 {
     case response = 0x01
-//    case queryDevice = 0x02
+    case queryDeviceInfo = 0x02
 //    case ota = 0x07
     case setTime = 0x09
     case setTimeFormat = 0x10
diff --git a/HDFwear/Tools/BluetoothManager+Function.swift b/HDFwear/Tools/BluetoothManager+Function.swift
index a206ca9..63f0e70 100644
--- a/HDFwear/Tools/BluetoothManager+Function.swift
+++ b/HDFwear/Tools/BluetoothManager+Function.swift
@@ -15,6 +15,20 @@ extension BluetoothManager {
 //        self.setCmdClosure = completion
         sendData(data)
     }
+    
+    // 查询设备信息
+    // 0x01 设备ID
+    // 0x02 设备名称
+    // 0x03 设备mac地址
+    // 0x04 MCU版本号
+    // 0x05 电量
+    // 例如[0x02, 0x03]表示查询设备名称和设备mac地址
+    func queryDeviceInfo(queryItems: [UInt8], completion: ((_ error: Int?) -> ())? = nil) {
+        let data = BleMessage.shared.getQueryDeviceInfoCmd(queryItems: queryItems)
+        self.setCmdClosure = completion
+        sendData(data)
+    }
+    
     // 设置时间
     func newSetTime(completion: ((_ error: Int?) -> ())? = nil) {
         let data = BleMessage.shared.getTimeCmd()