Continuous shearer is an important equipment for roadway driving in coal mine. Driving wheel is an important part of continuous shearer traveling mechanism. Its reliability determines the working efficiency of continuous shearer. In roadway driving process, shearer's driving wheel is affected by alternating loads of crawler belt, which will result in stress concentration and deformation. In order to analyze the stress and deformation response of the drive wheel, the finite element method was used to analyze the strength of the drive wheel under the two conditions of forward and backward. At the same time, the traditional gear strength calculation method was used to solve the bending stress of the gear teeth, and the accuracy of the proposed model and finite element calculation results was verified. The results showed that the error of finite element method is 5.4% ~ 7.5%, which verified the accuracy and convenience of the finite element analysis method.