The invention discloses an injection mold for a foot pad of a computer case. The injection mold comprises a fixed mold body and a movable mold body. The fixed mold body comprises an upper mold plate, a concave mold fixing plate, a concave mold insert, a sprue bush, mold cavities, a guide sleeve and cooling water channels. The movable mold body comprises a convex mold insert, a convex mold fixing plate, guide columns, supporting plates, an ejector pin fixing plate, an ejector pin cushion plate, a lower mold plate, a stop pin, a sprue puller, double-joint round ejector pins, supporting columns, return pins and cooling water channels. The fixed mold body and the movable mold body are matched and connected through the guide column and the guide sleeve. The 10 cooling water channels are arranged in the injection mold for the foot pad of the computer case, so that cooling time is short, and production efficiency is high; the four supporting columns are arranged, so that the materials of the supporting plates can be reduced, and the mold cost is low; the 24 mold cavities are adopted for injection molding at the same time, so that production efficiency is high; and a convex mold and a concave mold are both made to be of an insert structure, so that replacement is convenient, and the mold cost is low.