《机械制图》课是技工学校机械类专业的一门重要技术基础课。对于空间概念较为肤浅的初中毕业生，学习起来普遍感到吃力。为克服这一困难，有效地培养学生的空间想象能力，笔者就如何教好《机械制图》课的基础部分谈谈自己的教学体会和认识。 机械制图的基本知识是基础部分教学 “Mechanical drawing” class is a major technical mechanics school mechanics basic course. For the more superficial junior high school graduates, learning is generally felt hard. In order to overcome this difficulty and effectively cultivate the students’ spatial imagination ability, the author talks about how to teach his basic knowledge and understanding of the basic part of Mechanical Drawing course. The basic knowledge of mechanical drawing is the basic part of teaching