The invention provides a medium-sized bulk container which is used for containing a liquid medium and comprises a tank body, a frame, a weighing sensor support and a positioning recognition terminal.The bottom of the tank body is funnel-shaped, and the bottommost end of the bottom is a discharge port, so that the liquid medium is completely discharged, the cyclic utilization is facilitated, and the pollution is reduced. The frame is arranged on the periphery of the tank body so as to fix the tank body in the frame. The weighing sensor support is arranged in the frame and is connected with thebottom of the tank body so as to support the tank body, and the weighing sensor support can obtain the weight of a liquid medium in the tank body in real time so as to send obtained weight information outwards; and the positioning recognition terminal is arranged on the tank body, the frame or the weighing sensor support, is used for positioning the position of the medium-sized bulk container, has a unique identification code and records the type of the liquid medium in the tank body.