The utility model discloses a tobacco stem pulling machine which comprises a machine frame. A suspension triangular rack is arranged at the front end of the machine frame, and a gearbox is mounted at the front end of the machine frame. The tobacco stem pulling machine is characterized in that three stem pulling rotors are rotatably mounted at the bottom of the rear end of the machine frame, the three stem pulling rotors are arranged at intervals left and right along the same axis, and the stem pulling rotors are in power connection with a power output shaft of the gearbox; each stem pulling rotor comprises a center shaft, each center shaft is provided with two connecting plates which are oppositely arranged left and right, each connecting plate is evenly provided with a plurality of cutter bars in an annular mode, the two ends of each cutter bar are each connected with one corresponding connecting plate, a cutting edge is arranged on one side of each cutter bar, and each cutting edge obliquely faces the circumferential outer side of the corresponding connecting plate. The tobacco stem pulling machine can be used for pulling tobacco stems in three ridges at the same time, the working efficiency is high, the times that a farm machine travels in the field can be reduced, and the damage to soil structures is lightened.