The utility model discloses a multi-station rotary conveying device of an M-bag packaging machine. The device comprises a supporting frame, a vertical rotating shaft and four rotating brackets, the top of the supporting frame is connected with a horizontal mounting plate; the vertical rotating shaft penetrates through the horizontal mounting plate; a vertical sleeve coaxially sleeves the outer part of the vertical rotating shaft; the lower end of the vertical sleeve is fixedly connected to the horizontal mounting plate; the upper end of the vertical rotating shaft extends out of the top of thevertical sleeve and is fixedly connected with a horizontal rotating tray; the four rotary supports are the same in structure and are fixedly connected to the horizontal rotary tray in a circumferential array mode. A bag opening mechanism is arranged on the upper portion of each rotary support, a pier face mechanism is arranged on the lower portion of each rotary support, the four pier face mechanisms correspond to the four bag opening mechanisms in a one-to-one mode, and a face unloading mechanism located below the pier face mechanisms is installed on the horizontal installation plate. The fine dried noodle packaging machine is scientific in design, reasonable in structure and high in automation degree, periodically rotates, meets continuous operation of packaging procedures and guarantees neat packaging of fine dried noodles.