Abstract: 316H stainless steel is difficult to machine due to its low thermal conductivity, high strength, high ductility and high work hardening properties. In order to explore the influence of three cutting factors on cutting force, a simulation model of turning 316H stainless steel was established and studied by orthogonal simulation experiment. The range analysis method and variance analysis method are used to analyze, and finally the different cutting parameters that affect the primary and secondary order of cutting forces are obtained, and the most reasonable cutting parameters under the minimum cutting force are given.