diff --git a/service/modbus_qc_mapping.go b/service/modbus_qc_mapping.go
index 494bcc5..f9a0b76 100644
--- a/service/modbus_qc_mapping.go
+++ b/service/modbus_qc_mapping.go
@@ -74,9 +74,14 @@ func (s *modbusQcService) WriteQdBytes(bytes []byte) error {
 }
 
 func NewModbusQcService(config *sproto.ModbusConfig, qd []byte, cj []byte) (IotQcMappingService, error) {
+	// 基础配置检查
 	if err := checkConfig(config); err != nil {
 		return nil, err
 	}
+	// 映射范围配置检查
+	if err := checkConfigMappingRange(config, qd, cj); err != nil {
+		return nil, err
+	}
 	_, ok := modbus.GetClient(config.Url)
 	if ok {
 		return nil, fmt.Errorf("modbus客户端已存在,url=%s", config.Url)
@@ -173,15 +178,6 @@ func (m *modbusQcService) onWrite(dt sproto.DataType, bytes []byte) error {
 // 	}
 // }
 
-func isWriteFunction(modbus_Function sproto.Modbus_Function) bool {
-	return modbus_Function == sproto.Modbus_WriteCoil ||
-		modbus_Function == sproto.Modbus_WriteCoils ||
-		modbus_Function == sproto.Modbus_WriteRegister ||
-		modbus_Function == sproto.Modbus_WriteRegisters ||
-		modbus_Function == sproto.Modbus_RWCoils ||
-		modbus_Function == sproto.Modbus_RWRegisters
-}
-
 func (m *modbusQcService) run(ctx context.Context) {
 	defer close(m.done)
 mainLoop:
@@ -369,6 +365,41 @@ func checkConfig(config *sproto.ModbusConfig) error {
 	return nil
 }
 
+func checkConfigMappingRange(modbusConfig *sproto.ModbusConfig, qd []byte, cj []byte) error {
+	for _, mdm := range modbusConfig.Mapping {
+		if mdm.Type == sproto.DataType_CollectTable {
+			err := checkMappingOutRange(mdm, cj)
+			if err != nil {
+				return err
+			}
+		} else if mdm.Type == sproto.DataType_DriveTable {
+			err := checkMappingOutRange(mdm, qd)
+			if err != nil {
+				return err
+			}
+		}
+	}
+	return nil
+}
+
+func checkMappingOutRange(mdm *sproto.ModbusDcMapping, bytes []byte) error {
+	f := mdm.Function
+	start := mdm.Start
+	quantity := mdm.Quantity
+	if isCoilFunction(f) {
+		end := start + quantity
+		if end > uint32(len(bytes)*8) {
+			return fmt.Errorf("modbus地址映射配置错误,采集表地址超出范围: 功能=%s,起始位地址=%d,位数量=%d,实际位长度=%d", f, start, quantity, len(bytes)*8)
+		}
+	} else {
+		end := start + quantity*2
+		if end > uint32(len(bytes)) {
+			return fmt.Errorf("modbus地址映射配置错误,采集表地址超出范围: 功能=%s,起始字节地址=%d,字数量=%d,实际位长度=%d", f, start, quantity, len(bytes))
+		}
+	}
+	return nil
+}
+
 func convertEndianness(endianness sproto.Modbus_Endianness) modbus.Endianness {
 	switch endianness {
 	case sproto.Modbus_BigEndian:
@@ -378,3 +409,28 @@ func convertEndianness(endianness sproto.Modbus_Endianness) modbus.Endianness {
 	}
 	return modbus.BigEndian
 }
+
+func isWriteFunction(modbus_Function sproto.Modbus_Function) bool {
+	return modbus_Function == sproto.Modbus_WriteCoil ||
+		modbus_Function == sproto.Modbus_WriteCoils ||
+		modbus_Function == sproto.Modbus_WriteRegister ||
+		modbus_Function == sproto.Modbus_WriteRegisters ||
+		modbus_Function == sproto.Modbus_RWCoils ||
+		modbus_Function == sproto.Modbus_RWRegisters
+}
+
+func isCoilFunction(modbus_Function sproto.Modbus_Function) bool {
+	return modbus_Function == sproto.Modbus_ReadCoil ||
+		modbus_Function == sproto.Modbus_ReadDiscreteInput ||
+		modbus_Function == sproto.Modbus_RWCoils ||
+		modbus_Function == sproto.Modbus_WriteCoil ||
+		modbus_Function == sproto.Modbus_WriteCoils
+}
+
+// func isRegisterFunction(modbus_Function sproto.Modbus_Function) bool {
+// 	return modbus_Function == sproto.Modbus_ReadInputRegister ||
+// 		modbus_Function == sproto.Modbus_ReadHoldingRegister ||
+// 		modbus_Function == sproto.Modbus_RWRegisters ||
+// 		modbus_Function == sproto.Modbus_WriteRegister ||
+// 		modbus_Function == sproto.Modbus_WriteRegisters
+// }