The invention discloses a roller type efficient mulberry leaf drying device. The roller type efficient mulberry leaf drying device comprises a base, a roller, a transmission mechanism and an air heater; two stand plates are arranged on the left and right sides of the top of the base; a cross beam is connected to the tops of the stand plates on the two sides; the roller is arranged above the base;a left rotating shaft and a right rotating shaft are respectively connected to the centers of the end surfaces on the two sides of the roller; the right rotating shaft is an extension shaft with a hollow design; a transmission shaft for driving the left rotating shaft to rotate is arranged on the left side of the left rotating shaft; the transmission shaft is provided with a transmission mechanismfor driving the transmission shaft to rotate; the air heater is mounted on the right side of the base; a hot air pipe upwards extends to penetrate through the stand plate on the right side, and extends into the roller in the axis direction of the right rotating shaft; exhaust ports are densely formed in the hot air pipe; and an overturning rod is arranged at the outer periphery of a pipe body ofthe hot air pipe. The mulberry leaf drying device can effectively prevent nutrient loss of mulberry leaves to guarantee no influence on nutritional value of the mulberry leaves, and meanwhile, is uniform in heating of the mulberry leaves and excellent in drying effect to guarantee the quality grade of dried finished products.