Abstract: The original process scheme of worktable casting was introduced, and the problems in production were pointed out. It is considered that the best way to solve the problem is to improve the casting structure. On the premise of not changing the external machining dimension, improve the casting structure, adjust the process plan, so that many problems can be solved, produce qualified table casting. Thus the production difficulty is reduced, the metal material is saved, the production cost is reduced, and the finished product rate is increased.