The automobile assembly inspection tool is a tool used to check the installation matching relationship of each decoration piece or assembly in the car body and the installation matching relationship between the decoration parts. This kind of inspection tool plays a vital role in the automobile manufacturing process. It mainly detects the mutual position matching relationship of each sub-assembly and the matching accuracy after assembly to ensure the quality and stability of automobile assembly. The structure of the assembly inspection fixture usually includes the bottom plate part, the skeleton part and the standard module part, which can realize the functions of simulating loading of the solid parts of the decoration parts, mixing of any combination, evaluation of the matching relationship between the parts, and simulation and evaluation of the adjustment scheme. These functions enable the assembly inspection tool to effectively detect the size and shape of each assembly to ensure that it meets the design requirements and fits well with other parts.