Abstract: Finite element method was used to conduct a transient dynamic analysis of cam follower commonly found in agricultural machinery．Taking cam drive mechanism in a specific dry-land seeder as an example, a finite element model of cam follower was established．Material properties for 45# steel were defined, and corresponding boundary conditions and loads were applied．By setting multiple load steps, dynamic response of cam follower during sowing operations was simulated to determine velocity and acceleration time history curves, as well as distribution of displacement, stress, and strain at different time points．Results showed that stress and strain were most concentrated around top surface midpoint and bottom surface sharp point of cam follower．Stress and strain in Y direction were significantly higher than those in X and Z directions, with a maximum stress of 9.57 MPa, a maximum strain of 2.98×10⁻⁵, and a maximum structural deformation of 2.08×10⁻⁶ m．This analysis have provided an effective basis for reliability assessment, potential hazards identification, and structural optimization of cam followers in agricultural machinery, contributing to improved agricultural machinery operational stability, reduced failure rates, and lower field testing costs．