The invention provides a communication method between an electric energy meter and a communication module. The method includes following steps: S1, a type information set of the communication module and a communication protocol set of the communication module are arranged in the electric energy meter, and the electric energy meter sends a data-reading command to the communication module; S2, if the communication module does not respond to the data-reading command, S7 is entered; and if the communication module responds, a next step is entered; S3, whether a universal data frame format responded by the communication module is legal is determined; if not, S7 is entered; and if yes, a next step is entered; S4, whether the type of the communication module is legal is determined; if not, S7 isentered; and if yes, a next step is entered; S5, whether a communication protocol of the communication module is legal is determined; if not, S7 is entered; and if yes, a next step is entered; S6, ifthe communication module is matched with the electric energy meter, S8 is entered; S7, if the communication module is not matched with the electric energy meter, the process is ended; and S8, the process is ended. According to the method, the adaptability and the universality between the communication module and the electric energy meter are improved.