The invention discloses a multifunctional clamp for clamping a box body part. The multifunctional clamp comprises a bearing frame, two fixing plates, four telescopic arms, two positioning guide rails,two lifting electric cylinders and two supporting columns. The multifunctional clamp has the beneficial technical effects that the multifunctional clamp for clamping the box body parts is provided, the posture of the clamp can be adjusted, and the clamping requirements of the box body parts with different shapes can be met.