Abstract: Surrounding rock has large deformation and difficult support of mudstone-roof gateway in deep mine. Through deformation and failure analysis of gateway original support scheme in 15^# mining area of Guhanshan Mine, comparative analysis of surrounding rock convergence characteristics was carried out by field measurement and numerical calculation, the reserved section strength bolt-cable coordinate support technology was proposed, and industrial test and data monitoring of design scheme were proceed. The results show that mudstone roof expansion and high stress environment of surrounding rock instability is a major reason, gateway convergence is protruding type, four corners are stress concentration areas. After the using of design scheme, roof abscission layer amount is less than 50 mm, surrounding rock convergence is less than 250 mm, gateway surrounding rock is stable, and support effect is significant.