The underground mining is the main method of coal exploit which causes immense load of support and tunneling. Pre-national coal mine in 2001 ,the total height is 5045km ,coal length is 4480km of which proportion is 8819%.Comprehensive exploit is the mainly high production and high efficiency technology of mining roadway excavation.

Our country has developed and imported approximately 20 kinds of boom roadheader which makes the comprehensive mechanization tunneling improved.

In recently year,the bolt support in Coal Roadway technology exploited and marketed by China has made the rock mechanics performance test technology of roadway surrounding rock, coal roadway bolting support design technology, construction machinery and equipment and support material reveal great and rapid development.

Mechanization tunneling and support technology of roadway is the indispensable factor to establish high volume and high efficiency mine zone.Meanwhile,with the development of comprehensive exploit technology,there is coming up automatic comprehensive exploit working interface which is more than 10000,000t so that the roadway tunneling and support are becoming technology bottleneck of safety and high efficiency coal exploit with intensive production.