Abstract: According to the problems of high labor intensity and high risk of human-fowl co-infection in China, a five-degree-of-freedom manipulator is designed to realize the unmanned picking of dead broilers. Each joint of the manipulator is mainly driven by the motor. The single chip microcomputer is selected to control the motor of each joint, and its three-dimensional model is plotted. At the same time, the D-H equation of the manipulator is established, and the simulation model is established by using the robot toolbox in Matlab. The motion trajectory is simulated by using the seven-order polynomial interpolation, and the Monte Carlo method is used to simulate and analyze the workspace. The results show that the workspace of the manipulator is a circle with a radius of 980 mm in the horizontal direction, which can cover the dead chicken picking position and meet the preset working requirements. At the same time, according to the simulation trajectory and the velocity acceleration diagram of each joint, the motion of the manipulator is stable, which lays a foundation for the design of the control system.