The invention discloses an antitank rocket fuse hood bottom screw disassembling machine, and relates to the technical field of cartridge disassembling devices. A hood box is located on the left side of a crossed main frame. A bottom screw box and a fuse box are arranged on the right side of the crossed main frame in the front-back direction of the crossed main frame. The fuse box is opposite to the hood box. A clamping device is located at the portion, between the hood box and the fuse box, of the crossed main frame. Moving parts on the hood box, the fuse box and the bottom screw box can rotate and move left and right under the drive of a hydraulic system. A screw device is arranged on the most front side of the middle of the crossed main frame. The clamping device can move back and forth along the crossed main frame under the drive of the screw device. The hydraulic system is controlled by an electrical control system. The disassembling machine can automatically disassemble antitank rocket bottom fuses, hoods and initiating explosive column positioning bottom screws and has the beneficial effects of being safe to use and high in efficiency.