The invention discloses a weight tipping device, in particular, is suitable for tipping a welded reinforcement cage, and belongs to the technical field of automatic control. The weight tipping device consists of a longitudinal beam, a long cross beam, a left short cross beam, a right short cross beam, a manual winch, a steel wire rope, a rope sheave, a steel wire rope bracket, a reinforcement cage, a reinforcement cage fixing left bracket, a reinforcement cage fixing middle bracket, a reinforcement cage fixing right bracket, a reinforcement cage overturning right bracket, a reinforcement cage overturning middle bracket, a reinforcement cage overturning left bracket and an overturning rotating shaft. When a reinforcement cage is required to be overturned, the manual winch pulls the steel wire rope to lift up the reinforcement cage to realize the overturning of the reinforcement cage; when the gravity center of the reinforcement cage just crosses the rotating axle of the overturning rotating shaft, the steel wire rope is contacted with the steel wire rope bracket; under the effect of the steel wire rope bracket, the steel wire rope applies the acting force on the reinforcement cage through the steel wire rope bracket; and the reinforcement cage tips under the coaction of the lifting force of the steel wire rope and the gravity of the reinforcement cage, so that the control of the whole tipping process of the reinforcement cage is realized.