Terminal access method and mass data transmission system for energy saving service

The invention relates to a terminal access method and a mass data transmission system for energy saving service. The terminal access method comprises the following steps of: determining connection modes between terminals and a communication front-end processor according to the types of the terminals; building long connection if the terminals are important terminals; and building connection only during information transmission if the terminals are non-important terminals. The mass data transmission system comprises the terminals and the communication front-end processor building connection with the terminals, wherein the communication front-end processor comprises a message analysis and processing module for data processing, a server connection pool and a client connection pool, and the server connection pool and the client connection pool are both connected with the message analysis and processing module. By dividing the types of the terminals, the connection modes between the terminals and the communication front-end processor are determined according to the types of the terminal, so that the terminals and the communication front-end processor are not limited as a server or a client; and besides, not all terminals need to keep in connection with the front-end processor, so that the working pressure of the front-end processor is reduced, and invested cost is reduced.