The utility model discloses a self-adaptive multidirectional displacement box. The self-adaptive multidirectional displacement box is located at the root of a movable steel comb plate (1) of a comb-type telescopic device and comprises a box body, the box body is defined by a box body steel plate (4) and provided with an opening in the upper portion, at least one self-adaptive elastic displacement device (8) connected with the movable steel comb plate (1) is arranged in the box body, and the device can bear the load transmitted by the movable steel comb plate (1) and eliminate influences on a bridge girder (5) through deformation of the device. The self-adaptive multidirectional displacement box solves the problems that a comb-type steel telescopic device in the prior art is poor in displacement adaptability, the situation that a bolts pierces a tire exists, the traffic safety is affected and the service life is not ideal, and is simple in structure and low in production cost.