In this paper,the design idea and the composition of automatic dimension mark in expert system of steel structure (ESOSSD) are described. The methods of automatic dimension mark in the plane drawings and the compoment working drawings are presented.

• 本文介绍了钢结构设计专家系统（ESOSSD）的自动尺寸标注的设计思想和组成结构，提出了平面图和构件施工图标注自动生成方法。