Abstract: A quick release socket for an insulated tool has a main body and a socket jacketed on the main body. A polygonal hole is formed at a front end of the main body, a connecting rod protrudes from a rear end, at least a through hole is provided around the main body, and a fastening ring groove is provided around the main body. The through hole is connected to the polygonal hole, so the through hole provides the positioning ball for accommodation. The fastening ring groove has a stopping member inside. The socket has an engaging groove, and the engaging groove is divided by a protruding rib into a first accepting space and a second accepting space. A circular slot is provided at a front end of the inner wall of the socket.