The invention discloses a tool for repairing automobile dents. The tool is characterized in that people can process the automobile dents by themselves, the tool comprises a metal rod, a concave suckeris arranged at one end of the metal rod, a limiting support is arranged at the other end of the metal rod, a handle is installed on the outer side of the limiting support, a metal sliding block is arranged in the middle position of the metal rod, and the metal sliding block can freely slide on the metal rod; and when the automobile dents are processed, hot melt adhesive is injected into the concave sucker at one end of the metal rod, the concave sucker is pressed against the automobile dents for several minutes, after the concave sucker is firmly adhered to the automobile dents by the hot melt adhesive, one hand grips the handle, the other hand grips the metal sliding block to slide backwards to impact the limiting support, so that the concave sucker on the metal rod is driven to stretchbackwards, and the automobile dents which are tightly adhered to the concave sucker are restored to the original positions along with the pulling force of the concave sucker.