Based on severe mining and wasting of resources in Dianping Mine, mining technology of open-pit roadway with no coal pillar under cutting tip unloading pressure in 5-200 working face was introduced, the traditional two-lane model of long wall mining was abandoned, Directional pre - splitting heading technology was adopted, heading face roadway was retained as the recovery mining roadway of the next working face to realize single mining. The implementation of the technology retained the completed air return roadway as the air return roadway of 5-202 working face, retained 942 m roadway, with more 100 000 t raw coal, providing reference for no-pillar roadway along empty roadway mining