The invention discloses a textile drying box which comprises a box body. Two opposite sides of the box body are provided with a textile inlet and a textile outlet correspondingly, the box body is internally provided with a plurality of roller shafts, the axes of the multiple roller shafts are parallel, at least one horizontal rod is arranged between the adjacent roller shafts, two ends of each horizontal rod are connected to the inner wall of the box body, each horizontal rod is provided with a microwave heating device, the width of each microwave heating device is larger than or equal to thatof the textile, the top of the box body is in an inverted hopper shape, the center portion of the top of the box body is provided with an opening which is connected with a pipeline, the pipeline is connected with the inlet of an air fan, the outlet of the air fan is connected to a preheating device outside the textile inlet, the preheating device comprises preheating rollers, each preheating roller is a structure with a cavity, the circular surface of each preheating roller is provided with a plurality of uniform air holes, one end of each preheating roller is connected with a motor, and theother end of each preheating roller is connected with the outlet of the air fan. The textile drying box is low in energy consumption and good in drying effect.