The invention relates to the technical field of automobile auxiliary part fabrication devices, in particular to an automobile cover plate manufacturing mold. The automobile cover plate manufacturing mold can be used for manufacturing cover plates of different sizes and shapes, adaptability is improved, and use limitation is reduced; a lower mold body formed after compaction is conveniently taken out of an upper containing tank; stability is improved when the lower mold body moves, and use reliability is increased. The automobile cover plate manufacturing mold comprises a support, a workbench, a containing frame, a hydraulic cylinder, the lower mold body and an upper mold body, and further comprises a pressing plate, a left fixing plate, first left electric expansion rods, a first left clamping plate, a right fixing plate, first right electric expansion rods, a first right clamping plate, second left electric expansion rods, a second left clamping plate, second right electric expansion rods and a second right clamping plate, wherein the pressing plate is arranged at the bottom end of a piston rod. The automobile cover plate manufacturing mold further comprises a left connecting rod and a right connecting rod. The containing frame comprises a top plate, a left supporting plate and a right supporting plate. The automobile cover plate manufacturing mold further comprises a push plate, a left electric cylinder and a right electric cylinder.