The invention discloses a linen folding machine. The linen folding machine comprises a machine body; a feeding device, a folding mechanism and a discharging device are arranged inside the machine body; a feeding inlet is formed in one side of the machine body; a discharging outlet is formed in the bottom of the machine body; the folding mechanism is arranged inside the machine body; one side of the folding mechanism is connected with the feeding inlet; the folding mechanism is located above the discharging outlet; the feeding device is connected with the feeding inlet; the discharging device is located at the bottom of the discharging outlet; hinged baffles are arranged on the two sides of the discharging outlet; telescopic rods are arranged between the baffles and the machine body; the folding mechanism comprises two parallel conveying belts; a center positioning strip is arranged between the conveying belts; the end of the central positioning strip extends out of the feeding inlet; folding boards are arranged above the lateral sides of the conveying belts. Folding is convenient. Feeding and discharging are convenient.