Keyless entry and staring system of automobile and application method

The invention provides a keyless entry and staring system and an application method. The keyless entry and starting system is connected with an electronic steering column lock controller, an automobile body controller and an engine controller through a CAN (controller area network) bus respectively; the system comprises an identification and verification module and a control module, wherein the identification and verification module is used to identify and verify the validity of a remote control key in a vehicle when vehicle starting information is obtained, and the control module is used, when an identified and verified result of the identification and verification module is passed, to perform engine antitheft authentication through information exchanging with the engine controller and to start an engine after the engine antitheft authentication is passed. The security level of information transfer between the keyless entry and starting system and other controllers is increased, and the quantity of the controllers required to be installed in the vehicle is reduced.