Abstract: To promote the application of glass fiber reinfored plastic bolt in Duanwang Mine, We use field measurement and theoretical mechanics to analyze the total failure proportion and failure modes of glass fiber reinforced plastic bolt at 150405 working face. The results show that glass fiber reinfored plastic bolt support in Duanwang Mine is feasible; the main failure forms are fitting failure and anchor support failure; we give support countermeasures against these two failure modes.