This paper introduces the characteristic of these two types of driving mode , compares them from aspects of mounting , operation and maintenance , then comes to the conclusion that the belt motion will lead the development of automatic door 介绍了齿带和螺杆两种门传动方式的特点,并从安装、使用和维护的角度进行分析比较后认为,齿带传动是发展趋势。