Train driving assistance method and system

A train driving assistance method comprises: pre-setting a driving line database (S0), wherein the driving line database comprises a corresponding relationship between position information and early-warning information about an early-warning point and a corresponding relationship among train arrival time information, the number of brake times and driving information, and a record of one corresponding relationship is a solution; acquiring the position of a train (S1); acquiring the position information about the next early-warning point (S2); calculating an early-warning distance between the train and the next early-warning point according to the position of the train and the position information about the next early-warning point (S3); when the early-warning distance is calculated to be smaller than a pre-set value, displaying the early-warning information corresponding to the position information about the next early-warning point (S4); screening an optimal solution according to the train arrival time information and the number brake times of the train (S5); and determining the driving information according to the optimal solution and displaying the determined driving information (S6). Through the method, more driving reference information can be provided for the driver. Also provided is a train driving assistance system.