In the paper, inference the position, velocity and acceleration of the driven bar of quadric crank chain when the driving bar are derived, and a computer program based on MATLAB is compiled to simulate the linkage curve, position, velocity and acceleration. 推导铰链四杆机构在主动件处于不同位置时从动件的位置、速度和加速度关系,并编制相应的程序,基于MATLAB对连杆曲线、位置、角速度及角加速度进行计算机运动仿真。