Based on drilling, pipes carry hanging, branch pipe down-pass, welding, pipe sleeving fixing technology problems in 1 000 m deep well large diameter straight hole construction, combining with the production practice in Yangdong Mine, a set of practical drilling construction technology was analyzed and concluded. Through management, technology, equipment and other methods, which ensured the achievement of 1 000 m deep well large diameter straight hole, the technology provided reference and experience for large mining deep mine large diameter straight hole construction.