The utility model relates to a gate module structure of a trapper cage, which comprises a frame body and a tilting pendulum.Board,The two ends of the frame are open.And one end of the top surface extends downward with a baffle plate and the other end is pivoted downward with a swinging member.The lower end of the swinging member is close to the bottom of the frame body and can swing to cover one end of the frame body.The bottom side group of the front edge of the tilting plate is provided with a counterweight.The tilting plate is inclined normally.When the leading edge of the tilting plate is raised,The front edge of the tilting plate is in contact with the lower end of the baffle plate adjacent to the frame;At the same time,The lower end of the swinging part is in contact with the top surface of the edge after the tilting plate sinks.The gate module group is arranged in the entrance channel of the trapper cage, which has a one-way access rocker design.一種捕獸籠之柵門模組結構,包括有一框體以及一可傾擺之傾擺板,該框體之二端呈開放狀態,並其頂面一端向下延伸有擋板且其另端向下樞接有一可擺動之擺動件,該擺動件之下端接近該框體之底部且可擺動地遮閉該框體一端,該傾擺板前緣底側組設有配重塊,使該傾擺板常態呈傾斜狀,當該傾擺板之前緣翹起時,該傾擺板之前緣洽鄰近該框體之擋板下端;同時,該擺動件之下端洽抵於該傾擺板下沉之後緣頂面,使得柵門模組組設在捕獸籠之入口通道內具有單向進入之翹板式設計。