Magnesium alloy die-casting die

The utility model relates to the technical field of lightweight dies, and discloses a magnesium alloy die-casting die. Comprising a mounting base, a positioning block, a push-pull screw rod, a first sleeving block, a second sleeving block, a fixing rod, an abutting block, a rotating motor, a first gear, a supporting rod, a second gear, a supporting frame, an upper bottom plate, a first fixing block, a second fixing block, a supporting rod, a connecting rod, a hydraulic rod, a pressing block, a sliding rod, a sliding block and a fixing rod. The other end of the fixing rod is fixedly installed on the side face of the hydraulic rod. The mold is placed in the coarse positioning groove formed in the mounting base and then fixed through the clamping device, the mold is clamped, meanwhile, the abutting block is fixedly mounted on the side face of the first sleeving block to abut against the mold, the stability of the device is improved, and meanwhile the high efficiency of the device when the device clamps the mold