Abstract: Metallographic microscopic analysis experiment is one of the required courses of mechanical and material engineering in colleges and universities. In order to solve the problems such as the lack of map recognition， the experimental environment and so on，the paper presents a metallographic interactive experimental platform based on LAN and image recognition technology. The platform uses C/S software structure and Visual C# for programming，which is divided into teachers client and students client. Students client can distinguish the metallographic structure and the relative percentage content under metallurgical microscope by image recognition technology，then the metallographic analysis experiment can be automatically generated. Throughout the course of the experiment，students can ask questions through the LAN. Teachers client can view software interface of students client for providing advice timely and efficiently. Metallographic atlas of experiment report submitted successfully can provide data support for the development of metallography.

Key words: metallographic interaction, image recognition, video control, LAN