Abstract: In order to overcome the shortcomings of low installation efficiency， high cost of drilling， and high danger， low efficiency and poor installation effect of artificial installation of bolt in rock drill， resulting in being failure to reach the corresponding anchorage and protection function， the static simulation analysis and modal analysis of bolt installation equipment are carried out by using ANSYS simulation software. The maximum strain of bolt installation equipment is 0.046 9 mm， and the resonance frequency is 35.656 Hz. According to the simulation results， the structure of the anchor installation equipment is optimized and improved. A kind of anchor installation equipment which has two operation modes of propulsion and impact is designed. It can adapt to various anchor installation conditions with high installation efficiency and good protection performance. This equipment can improve the installation speed at 39.2 mm/s， and saves about 1.5 hours at one cycle， with outstanding economic advantage.

Key words: Tunnel, Bolt, Installation equipment, ANSYS