The invention provides a method for preparing a seaweed extracting solution and a rotation basket extracting device. The preparing method includes the steps that seaweed and
activated carbon are thrown into a plurality of
medicine baskets, and meanwhile
solvent is added into a tank body; a motor is started, a center shaft is made to rotate, hence, the
medicine baskets are driven to make centrifugal movement, and chemical substances included in the seaweed are extracted through the
solvent; after extracting is completed, the extracting solution is discharged from a liquid
medicine outlet; the extracting solution is settled through kieselguhr; supernate is collected,
microfiltration is conducted through a
ceramic membrane, permeate liquid is collected, and accordingly the seaweed extracting solution is obtained. The rotation basket extracting device comprises the tank body, the center shaft and the medicine baskets. The center shaft penetrates in the center of the tank body in a rotating mode, the medicine baskets are arranged on the center shaft,
solvent inlets and a medicine change opening are formed in the top of the tank body, and the liquid medicine outlet is formed in the center of the bottom of the tank body. The method has the advantages of being simple in process, short in period,
environmentally friendly and safe. The content of active substances of the prepared extracting solution is high, the number of varieties of active ingredients is large, and stability is achieved.