The invention specifically relates to a two-hole socket. The two-hole socket comprises a bottom casing and a surface casing fixed on the bottom casing, wherein the surface casing is provided with lock pins, the bottom casing is internally provided with protective doors moving up and down along the inside of the bottom casing, the side positions of the protective doors are provided with slide walls, one ends of the lock pins are arranged on the slide walls, the lower ends of the protective doors are also provided with lock keys, the lock keys are arranged on the lock pins, the upper ends of the protective doors are provided with inclined surfaces, the protective doors are also provided with second reset springs, and the reset springs abut against the bottom casing. The two-hole socket has the following advantages: 1, by use of combination of the lock pins and the protective doors, the doors cannot be open simply through push at one sides without simultaneous arrangement of standard plugs on the protective doors, and thus a safety protection effect is exhibited; and 2, the lock pins are locked by use of a first lock key and a second lock key for restricting unlocking which cannot be realized without plugs, children are prevented from electric shock risks caused by insertion of metal probes into the socket, and an electric shock prevention effect is exhibited.