A method for implementing concurrent access of multiple bearer protocols in a M2M platform comprising the steps of: after receiving an uplink message of a terminal, an access module of a Machine-to-Machine/Man, M2M, platform determining a bearer type of the uplink message, obtaining corresponding key information of the bearer type, and packaging the key information and an original datagram of the uplink message into an internal message and sending the internal message to a service module of the M2M platform; and after completing a service processing flow based on the internal message, the service module packaging datagram response contents and the key information into a downlink message and sending the downlink message to the access module, which sends the downlink message to the terminal corresponding to the downlink message based on the key information after receiving the downlink message, wherein when there is a plurality of service modules, the step of packaging the key information and the original datagram of the uplink message into the internal message and send the internal message to the service module of the M2M platform comprises: taking a subscript of each service module as an integer; after obtaining a sum of the last 6 character values of a terminal serial number in the uplink message and taking a modulus of the obtained sum and the number of the service modules, sending the internal message to a service module whose subscript corresponds to the modulus. after receiving an uplink message of a terminal, an access module of a Machine-to-Machine/Man, M2M, platform determining a bearer type of the uplink message, obtaining corresponding key information of the bearer type, and packaging the key information and an original datagram of the uplink message into an internal message and sending the internal message to a service module of the M2M platform; and after completing a service processing flow based on the internal message, the service module packaging datagram response contents and the key information into a downlink message and sending the downlink message to the access module, which sends the downlink message to the terminal corresponding to the downlink message based on the key information after receiving the downlink message, wherein when there is a plurality of service modules, the step of packaging the key information and the original datagram of the uplink message into the internal message and send the internal message to the service module of the M2M platform comprises: taking a subscript of each service module as an integer; after obtaining a sum of the last 6 character values of a terminal serial number in the uplink message and taking a modulus of the obtained sum and the number of the service modules, sending the internal message to a service module whose subscript corresponds to the modulus. taking a subscript of each service module as an integer; after obtaining a sum of the last 6 character values of a terminal serial number in the uplink message and taking a modulus of the obtained sum and the number of the service modules, sending the internal message to a service module whose subscript corresponds to the modulus. <EOS>