Abstract: Abstract: In shaft construction, the cutting-type roadheader mainly relies on the picks installed on the cutting drum to break the rock. The quality of the rock-breaking performance of the picks directly determines the performance of the roadheader. This paper uses the finite element method to simulate the rock-breaking process of a single pick, and analyzes the change law of the rock-breaking load under the key parameters of cutting thickness, cutting angle, tooth tip cone angle and cutting speed; Orthogonal test method to study the influence of these four key parameters on the specific energy of rock-breaking. Through intuitive analysis and variance analysis of the test results, the primary and secondary order of the factors affecting the specific energy of rock-breaking of the pick and the rock-breaking of the pick are obtained. Optimal configuration of parameters. The research results can be used as a reference for improving the rock breaking efficiency of picks.