Aiming at the existing problems of the remote concentrated reading meter, a double-layer network of remote reading meter based on CAN/RS485 is designed. According to its stability feature, a handshaking serial communication protocol is also introduced. Then, it designs picture in view of the character of remote reading meter's communication protocol and the remote reading meter system software among the user measure meter, the concentrated reading meter system, the center management computer. The practical test shows that this system has the characters of high stability, which can meet the design requirement.