Abstract: In order to verify whether the rigidity characteristics and strength characteristics of a new type of agricultural vehicle brake pedal were qualified, Creo software was used to establish its simulation analysis model, and then based on Abaqus software, it was used to set materials, add constraints, load concentrated forces and divide meshes．The displacement deformation and stress distribution of the pedal under lateral load of 100 N and the normal load of 500, 2 000 and 2 500 N were analyzed．Results showed that sum of lateral displacement, displacement under normal direction of 500 N, permanent deformation generated by 2 000 N and the maximum stress under 2 500 N all met requirements of working conditions．Topology optimization analysis of brake pedal was carried out, and static analysis of model after structural optimization was carried out．Results showed that it met requirements of working condition standard and could be used as the basis for lightweight design of brake pedal of this type of agricultural vehicle．