A Wireless Mouse Receiver Device, which comprising: an upper shell body, a lower shell body and an interior structure. The interior of upper shell body has several connection holes. The interior of lower shell body has several connection pillars. And, the interior structure, arranged between the upper shell body and lower body, includes: a connection head, which may be connected to the needed apparatus, a first electric board, on which is arranged with connection head and has several first welding points, and a second electric board, which has several second welding points and comprising: several plane elements, which has several short connection legs that is close to the second electric board, several elevated elements that has several long connection legs welded onto the second electric board and is above the plane element. Wherein, the first electric board is perpendicular to the second electric board and both are welded together by welding points to transmit signal. After the electric boards are welded together, left and right two sides of the first electric board are sandwiched into the outer-radius structure of connection holes in the front portion of the upper shell body, and the connection pillars of the lower shell body are inserted into the connection holes of the upper shell body.