从分析学生学习机械原理课程内容与参与实际设计机器的差距入手，说明了在机械原理课程中增加课程设计是非常必要的，对于提高学生的实际技能、学习后续课程以及适应毕业后的工作有重要的现实意义．通过教学改革的实践，说明增加机械原理课程设计的确使学生得到了锻练，有助于教学质量的提高 Starting from the analysis of the contents of the course of mechanical learning and the gap between participating in the actual designing machines, it shows that it is necessary to add course design to the course of mechanistic theory. It is important to improve students’ practical skills, follow-up courses and adapt to post-graduation work. The practical significance. Through the practice of teaching reform, it shows that adding mechanical principle to the course design really enables the students to get the training and helps to improve the teaching quality