The invention discloses a vehicle emergency early-warning rescuing system. The vehicle emergency early-warning rescuing system comprises a vehicle emergency early-warning rescuing platform and a plurality of vehicle-mounted terminals which are wirelessly communicated with the platform, wherein the emergency early-warning rescuing platform comprises a data collection server, a data storage server, an early-warning analysis server and a rescuing guide server, all servers are interconnected with one another through a network switch, the data collection, event storage, early-warning analysis and rescuing guide can be completed according to the data uploaded by each vehicle-mounted terminal; each vehicle-mounted terminal comprises a main control module, a bus module, a wireless communication module, a positioning module and a user interaction module, the bus module is bi-directionally connected with the main control module through an SPI bus, and the wireless communication module, the positioning module and the user interaction module are bi-directionally connected with the main control module through a serial port. The invention also relates to an emergency early-warning rescuing method of the system.