Method for extracting medicinal component of Yongchongcao

The invention relates to a method for extracting north Chinese caterpillar fungus medicine ingredients, the method includes: the crashed north Chinese caterpillar fungus is put into the container with alcohol or aether or its compound liquid, and makes it melted with above mentioned organic liquid at least on time, then the material is put into the container with water and carries on hot extraction twice, after the extracted liquid is combined, they are evaporated out the insoluble agent, finally carries on deposition, filter and condensing. The water extraction can separate out the organic acid, inorganic salt, nuclear species, and protein and so on; the alcohol extraction can separate out the biology alkali, glucoside, and lipid medicines, thus, uses the two methods to extract the same north Chinese caterpillar, it can separate out several kinds of medicines.