The invention relates to a method for supporting an arbitrary communication protocol to share channel resources. The method comprises the following steps: firstly, setting a communication protocol converter between a meter and a collection terminal; secondly, sending a meter reading request by the collection terminal, converting the meter reading request into a master station request frame by the communication protocol converter, and sending the master station request frame to the meter, wherein the format of the master station request frame is as follows: communication protocol converter address + control code + data domain length code + to-be-forward transparent package message; and finally, if the meter makes response to the master station request frame sent by the communication protocol converter, verifying the reply contents by the communication protocol converter, and converting the reply contents into a reply frame by the communication protocol converter if the verification is passed, wherein the format of the reply frame is as follows: communication protocol converter address + control code + data domain length code + to-be-forward transparent package message. By adoption of the method provided by the invention, the transmission of messages in a communication channel is not limited by the communication protocol, the utilization rate of system communication resources is greatly improved, and the system communication resources are fully excavated.