A method and system for sharing a file between mobile terminals is provided. When a first mobile terminal detects an operation of sharing a file with a second mobile terminal, the first mobile terminal establishes a connection with the second mobile terminal by broadcasting an SSID sequence, and transmits a file that needs to be shared to the second mobile terminal. Accordingly, the first mobile terminal can directly share a file with the second mobile terminal by only one operation step, which brings convenience to a user.