Abstract: A screen rack structure for a coin operating game machine including two racks and a frame, wherein the two racks are separately fixed on a platform, each of these fixed racks has on an upper end of its front side a first guiding dent, and has on a lower end of the front side a second guiding dent, the pitch of the second guiding dent is larger than that of the first guiding dent, and the lower end of the front side has a stopping block behind the second guiding dent; the frame is for placing a screen thereon, the upper and the lower ends of its outer lateral sides are provided each with an upper engaging piece and a lower engaging piece respectively, so that the frame can be collapsed onto the racks firmly after all the engaging pieces are engaged in the first and the second guiding dents; when the upper engaging pieces get released from the first guiding dents, the lower engaging pieces are still engaged in the second guiding dents, thereby the frame can be pulled out of the racks taking the lower engaging p