The invention belongs to the technical field of pause prevention during gear combination, and particularly relates to a method and a device for lightening pause during shifting up. The method comprises the following steps that (1) a controller detects the current gear m and the running speed v when an automobile runs; (2) the controller calculates the required rotating speed n of an engine when the automobile is kept at the running speed v and at the gear m+1; (3) the controller receives separation signals of the engine and a speed changer; (4) the controller controls the rotating speed of the engine at the rotating speed n, and enables the engine to be kept at the rotating speed n for t seconds; (5) a driver engages the gear m+1 or the gear m-1 in t seconds. According to the method and the device for lightening the pause during shifting up, after the driver steps on the clutch, the rotating speed of the engine is controlled at the required rotating speed n of the engine when the automobile put into the gear m+1 is kept at the running speed v. As the rotating speed of the engine is also the rotating speed n at the moment, the rotating speed difference between the rotating speed of the engine and the rotating speed of an intermediate shaft, and the problem of the pause during shifting up is resolved.