Abstract: For the high gas characteristic at 150405 coal face of Duanwang Mine in Shanxi Province, in order to eliminate the risks of gas explosion and damage to the roller cutters of shearer caused by metal bolts and improve the stability of the coal ribs during extraction, FRP bolts are used in the ribs of return airway. Supporting arguments are determined by analogy and calculation, and has been put into field application. Deep base point displacement and surface displacement observation tests show that FRP bolts work well in coal rib support and they are safe and practical to ensure the stability of both ribs. At the same time, FRP bolts eliminate some of the hazards maybe caused by gas and coal dust explosion. So, there is a wide range of application value.