The invention discloses a cut tobacco drying and uniformly-mixing device for a laboratory. The device comprises a material bin, a driving motor, an air heater and a material receiving disc. A feedingport is formed in the top of the material bin; a discharging port is formed in the bottom of the material bin; and a sieve plate is fixed to the lower portion in the material bin. A supporting shaft is fixed to the center of the back face of the material bin. An output shaft of the driving motor is in transmission connection with the supporting shaft to drive the material bin to rotate. An air inlet is formed in the back of the material bin; the air heater is fixed to the outer wall of the material bin; and an air outlet of the air heater is connected with the air inlet through a pipeline. A material receiving table is arranged below the material bin; the material receiving disc is connected to the material receiving table in a sliding mode; and a feeding mechanism for driving the materialreceiving disc to transversely move at a constant speed is arranged on the material receiving table. According to the invention, the working intensity of the operator in a manual blending form is greatly reduced and the cut tobacco can be baked with high efficiency and high quality, so that the overall uniformity of the tobacco shreds is improved. The device is simple and convenient to operate and is convenient and practical and thus is easy to popularize and use.