Processing method of polygonum multiflorum ultra-thin slices

The invention belongs to the technical field of production of medicines, and relates to a processing method of polygonum multiflorum ultra-thin slices. The processing method comprises the following steps: cleaning polygonum multiflorum tubers; spreading and air-drying until moisture of surfaces of the polygonum multiflorum tubers reaches 86-92%; uniformly spreading on a drying rack; baking at the temperature of 60-70 DEG C; baking until the moisture content of the polygonum multiflorum tubers reaches 80+/-3% at the constant temperature of 80 DEG C when indoor humidity is 40-60%; slicing the baked polygonum multiflorum tubers into slices with thicknesses of 1-5mm to obtain semi-dry slices; uniformly spreading the semi-dry slices on the drying rack, wherein the thickness of a single layer is 5-8 cm; baking at the constant temperature of 80-90 DEG C; meanwhile opening an air inlet and outlet opening; stopping heating until the moisture content of the slices reaches 10%; closing the air inlet and outlet opening; and opening all ventilating openings after 12 hours and obtaining the polygonum multiflorum ultra-thin slices when difference between indoor temperature and outdoor temperature is zero. The ultra-thin slices processed by the method are high in integrity, and content of effective elements is high.