The common processing method for manufacturing deep cylindrical parts is the backward extrusion forming process. In the hot forming backward extrusion process, a new process on multi-station precision backward extrusion forming control was proposed to solve the problem of wall thickness difference in cylindrical parts caused by various factors in complex working conditions. And the numerical simulations of forming process were conducted by simulation software to analyze the multi-station forming from the inheritance of wall thickness difference. The results indicate that the multi-station backward extrusion forming effectively corrects wall thickness difference, the smaller the deformation amount, the more beneficial it is to correct the wall thickness difference in the final product. The size stability test results of multi-station backward extrusion for cylindrical parts show that the wall thickness difference and height difference of three-station forming process are much better than those of two-station forming process. Thus, after improving temperature and friction conditions, the deviation amplitude of wall thickness and height for product is smaller.