The utility model discloses an intelligent charging system, divide and the charger part including socket part, socket part divides including D. C. Regulated power supply A, three terminal regulator A,NAND gate integrated package, D. C. Regulated power supply B, signal receiver, infrared ray photoelectric sensor A and infrared ray photoelectric sensor B, the charger part is including D. C. Regulated power supply C, the module of charging and signal transmitter, signal receiver and signal transmitter phase -match. The utility model discloses an add the specific frequency signal transmitter andthe receiver of mutual matching, built -in when having the charger that matches signal transmitter when inserting, signal receiver just can receive and switch on the signal in the socket, gives the line power supply that charges, the utility model discloses utilize the specificity of different signals ingeniously, can effectively avoid being usurped the economic loss who leads to the fact for theuser because of the battery charging outfit, had considerable practical value and market potential spreading value.