Abstract: Based on spatial relations and uses of the North East air return way and 21007 air return crossheading in Chensilou Coal, , combined with the existing transport system, the paper proposes the roof air bridge which has the advantage of little influence on the original production system, less engineering quantity, convenient construction, water self-flowing. By taking the control on key link ,like as the roadway reinforcement, equipment layout, blasting, airflow control, face protective walls, concrete block and so on, which ensured that the air bridge safe, fast and efficient construction, the project has good effect, which provided the reference for the similar conditions of in air bridge design and construction.