Track completion method and terminal

An embodiment of the invention discloses a track completion method. The method comprises steps as follows: track information of two tracks continuously slid by a user is induced by a sensor; when the track information of the two tracks meets preset conditions, whether the two tracks are two sections of the same track is determined; according to the track information of the two tracks, the track information of deficient tracks between the two tracks is determined. An embodiment of the invention further provides a terminal.