Provided is an anti-seepage protective cover for a power socket of an apparatus. The protective cover is used in special conditions to prevent liquid from penetrating into the power socket through a connecting portion between a power plug and the power socket and causing short circuit, and can guide the liquid to other places. The protective cover is composed of a base plate, an arched cover, straight plates and a power socket jack, wherein the upper end of the base plate is connected to the arched cover, the two sides of the base plate are respectively connected with the straight plates, the two lower ends of the arched cover are connected with the straight plates respectively, and the middle lower portion of the base plate is provided with the power socket jack which can accommodate the power socket, a switch and a fuse seat. The anti-seepage protective cover is easy to prepare, low in cost, convenient to install, rapid in dismounting and good in anti-seepage effect.