The invention provides a pin puller used for maintenance. The pin puller comprises a storage box, a box cover, a lifting handle, a pull pin connecting frame accommodating groove, pin puller accommodating grooves, a pull pin connecting frame structure, pin puller adjusting head structures, a lighting lamp structure, an upper locking buckle and a lower locking buckle, wherein the box cover is coupled at the upper part of the storage box; the lifting handle is arranged at the middle upper part of the box cover by injection molding; and the pull pin connecting frame accommodating groove and the pin puller accommodating grooves are transversely formed in the upper part of the storage box. According to the pin puller used for maintenance, through the arrangement of the plurality of the pin puller adjusting head structures, pull pin thread heads with different sizes can be replaced conveniently according to the maintenance requirements of printing equipment, so that the use is more convenient; besides, lamp tubes adopt telescopic plastic corrugated pipes, the illuminating angle of the lighting lamp can be adjusted conveniently, and the using functions of the equipment are increased; besides, through the arrangement of silicone pads, the protecting effect of the equipment is improved, and the equipment is prevented from being damaged by falling onto the ground.