A method for data sharing is provided. The method includes: searching, by a first terminal, for multiple nearby terminals, and establishing wireless connections with the discovered nearby terminals, displaying on the display interface of the first terminal the nearby terminals already wirelessly connected to the first terminal and a transmittable file stored in the first terminal or the nearby terminals, and receiving by the first terminal a file-transmission command and transmitting or receiving a file to or from the nearby terminals. A system for data sharing is also provided. By the above means, operations based on the present disclosure are simple and fast, enabling interconnections of mobile terminals within a close range, a mobile terminal can transmit a file synchronously to multiple terminals for data transmission, and the terminals can share data therebetween, which thus profoundly enhances the user experience.