The invention provides an assembling clamping device, and belongs to the technical field of assembling. The assembling clamping device comprises a base, a movable base, a first driving mechanism, a first clamping body, a second clamping body and a second driving mechanism, the movable base can be movably arranged on the base, the first driving mechanism is used for driving the movable base to vertically move relative to the base, the first clamping body and the second clamping body are oppositely arranged in the first preset direction, the first clamping body and the second clamping body are used for being matched for clamping an upper assembling part, the second driving mechanism is used for driving the first clamping body and the second clamping body to be close to or away from in the first preset direction, and the bottom of the movable base is provided with an extruding and ejecting part used for extruding and ejecting the upper assembling part. According to the assembling clampingdevice of the structure, the upper assembling part can be grabbed, the grabbed upper assembling part can be assembled with a lower assembling part, manual participation is not needed, and rapid assembling is achieved.