根据宏微系统质量块模型的根轨迹图和伯德图，来研究质量块系统的稳定性问题。通过改变原模型参数值来观察动力学软件模拟仿真结果，最终得到宏微机械臂末端的误差曲线，总结结构参数和物理参数对宏微机械臂系统的影响(the stability of mass block system is studied according to the root locus diagram and Bode graph of the mass block model of macro and micro system. By changing the parameters of the original model to observe the simulation results of the dynamics software, we get the error curve of the macro micro manipulator end, and conclude the influence of the structural parameters and physical parameters on the macro micro manipulator system.)