本文是关于美国机械动力学系统与控制学科研究动向的综述和发展预测。简述了这个交叉学科当前及今后一段时期应该重视的五个研究方向——相关系统的调节与优化、控制系统的计算结构、非线性系统的动力学与控制、动力学系统的模型化与模拟。其信息主要来源于美国麻省理工学院等10个单位的著名学者组成的专家小组的专题研究报告及讨论意见,有一定的新颖性。 This article is a review and forecast of the research trends in the field of mechanical dynamics and control disciplines in the United States. The five research directions that this subject should pay attention to at present and in the coming period are described briefly: adjustment and optimization of related systems, calculation structure of control system, dynamics and control of nonlinear system, modeling and simulation of dynamic system . The information mainly comes from the special research reports and opinions of experts group composed of famous scholars from 10 units such as Massachusetts Institute of Technology in the United States, and has certain novelty.