The invention provides a lycium barbarum screening device, and belongs to the field of agricultural product machining equipment. The lycium barbarum screening device comprises a shell, a first screening unit and a second screening unit; the first screening unit comprises a guide piece and an annular screen; the guide piece is provided with a first screen hole; the guide piece can bear materials falling from the first screen hole; the annular screen is mounted on the shell; the annular screen sleeves the guide piece; the guide piece is used for guiding the materials falling from a feed port onto the annular screen; the second screening unit comprises an exhaust mechanism; the exhaust mechanism is mounted on the shell, and is provided with multiple exhaust ports; the multiple exhaust ports are arranged in the peripheral direction of the shell at intervals; the wind direction of each exhaust port is towards the shell; each exhaust port and the inner wall of the shell are arranged at intervals; and an annular screening area for enabling the materials to fall is formed between the inner wall of the shell and the multiple exhaust ports. The lycium barbarum screening device is high in automation degree, saves both time and power in the screening work, and is high in screening quality.