diff --git a/middleware/McuManager/src/McuDevice.cpp b/middleware/McuManager/src/McuDevice.cpp
index 266d147b..a003cb71 100644
--- a/middleware/McuManager/src/McuDevice.cpp
+++ b/middleware/McuManager/src/McuDevice.cpp
@@ -92,7 +92,7 @@ ssize_t McuDevice::WriteData(const void *buff, const size_t buffLength, std::sha
          */
         mMutex.lock();
         length = IUartSend(mUartDevice, buff, buffLength);
-        PrintHexadecimalData(buff, buffLength, "Mcu urat write:");
+        // PrintHexadecimalData(buff, buffLength, "Mcu urat write:");
         mMutex.unlock();
         return length;
     }
@@ -106,7 +106,7 @@ ssize_t McuDevice::WriteData(const void *buff, const size_t buffLength, std::sha
     mMutex.lock();
     AddMcuAsk(ask);
     length = IUartSend(mUartDevice, buff, buffLength);
-    PrintHexadecimalData(buff, buffLength, "AddMcuAsk, Mcu urat write:");
+    // PrintHexadecimalData(buff, buffLength, "AddMcuAsk, Mcu urat write:");
     mMutex.unlock();
     if (WRITE_ERROR == length) {
         LogError("Uart send failed, something wrong happened.\n");
diff --git a/utils/McuProtocol/src/ProtocolHandle.cpp b/utils/McuProtocol/src/ProtocolHandle.cpp
index 4f0ca122..ea453b48 100644
--- a/utils/McuProtocol/src/ProtocolHandle.cpp
+++ b/utils/McuProtocol/src/ProtocolHandle.cpp
@@ -152,8 +152,10 @@ void ProtocolHandle::MakeNoUserDataPacket(const std::shared_ptr<VProtocolParam>
     packet.mCheckCode = BigEndianConversion(packet.mCheckCode);
     memcpy(mProtocolData + KEY_HEAD_LENGTH, &packet.mCheckCode, CHECK_CODE_LENGTH);
     mProtocolDataLength = packetLength;
-    ProtocolHandle::PrintHexadecimalData(
-        mProtocolData, mProtocolDataLength - CHECK_CODE_LENGTH, "MakeNoUserDataPacket:");
+    if (param->mCommand != ASK_FEED_WATCH_DOG) {
+        ProtocolHandle::PrintHexadecimalData(
+            mProtocolData, mProtocolDataLength - CHECK_CODE_LENGTH, "MakeNoUserDataPacket:");
+    }
 }
 void ProtocolHandle::MakeAskIpcMissionPacket(const std::shared_ptr<VProtocolParam> &param)
 {
@@ -351,7 +353,6 @@ StatusCode ProtocolHandle::GetDataLength(const void *keyHead, const size_t &head
         LogError("key head buf error.\n");
         return CreateStatusCode(STATUS_CODE_NOT_OK);
     }
-    ProtocolHandle::PrintHexadecimalData(keyHead, headLength);
     unsigned short headNum = PROTOCOL_HEAD;
     char byteOrder = ProtocolHandle::GetByteOrder();
     if (ORDER_LITTLE_ENDIAN == byteOrder) {
diff --git a/utils/ModBusCRC16/src/ModBusCRC16.cpp b/utils/ModBusCRC16/src/ModBusCRC16.cpp
index b560affa..688660d7 100644
--- a/utils/ModBusCRC16/src/ModBusCRC16.cpp
+++ b/utils/ModBusCRC16/src/ModBusCRC16.cpp
@@ -64,6 +64,6 @@ unsigned short calculate_check_sum(const unsigned char *pData, unsigned short le
         CRCHi = CRCLo ^ chCRCHi[uIndex];
         CRCLo = chCRCLo[uIndex];
     }
-    printf("CRCHi = 0x%x, CRCLo = 0x%x\n", CRCHi, CRCLo);
+    // printf("CRCHi = 0x%x, CRCLo = 0x%x\n", CRCHi, CRCLo);
     return (CRCHi << 8 | CRCLo);
 }
\ No newline at end of file