本文对江苏省教育科学“十二五”规划专项课题《基于系统教学的中职机械专业专业基础课程群的构建研究》中的中职机械专业基础课程群教学体系的内涵及构建意义进行阐述。本研究以减速器为主线,将机械制图、机制基础、金属材料与热处理、公差与技术测量、钳工工艺学五门课程整合成中职机械专业基础课程群。中职机械专业基础课程群教学体系的构建意义有:有助于提高教师综合素质,有助于学生综合职业能力的培养,同时也有助于机械专业基础课程群的改革。 In this paper, Jiangsu Province, education science “Twelve-Five ” planning special subject “based on system teaching in mechanical engineering specialty basic curriculum group construction” in secondary vocational mechanics course curriculum group teaching system connotation and construction significance Explain. In this study, the gear reducer as the main line, the mechanical drawing, the basis of the mechanism, metal materials and heat treatment, tolerance and technical measurement, fitter technology five courses integrated into basic mechanical engineering course group. The construction of the basic course group teaching system of mechanical engineering major in vocational schools is as follows: It is helpful to improve the overall quality of teachers, help students to train their vocational ability, and also help to reform the basic course group of mechanical engineering.