A connection member and a lead terminal seat structure with the connection member including a terminal seat and a connection member. The connection member has a first edge and a second edge, which are formed with alternately arranged depression sections and protrusion sections. The terminal seat has a recess formed with ridge sections and through sections in adjacency to the ridge sections. The ridge sections and the through sections are arranged corresponding to the depression sections and protrusion sections of the connection member with the connection member received in the recess of the terminal seat with the depression sections and the protrusion sections insert-connected with the ridge sections and the through sections.