Abstract: The present invention is related to a positioning structure of the upper cover of a telephone receiver, wherein the main design thereof is that the assembling portion of the receiver body is installed with a radial elastic piece, an axial elastic piece and a guiding rib; while a stopping portion is formed on the side of the free end of the radial elastic piece, while a positioning rib, a nose portion, and a screw rib are installed on the upper cover with respective to the radial elastic piece, axial elastic piece and guiding rib. According to said structure, the positioning rib may enter into the range of the stopping portion, and the nose portion is positioned that the stopping portion on one side of the axial elastic piece and the screw rib is entered into the range of the guiding rib. Therefore, the upper cover may be assembled on the predetermined position of the receiver body, and it may be open again by applying a force which is larger than a rated force.