Hypericum extract, its making method and medicinal composition and use for treating diabetes

The invention discloses hypericum L and the extraction and the preparation method of the extraction; the drug combination containing hypericum L and/or the extraction of the hypericum L; the usage of hypericum L and/or the extraction of the hypericum L used as drugs and health care product, in particular to the usage used for preparing drugs and health care products treating and preventing metabolic disorders relative to insulin resistance, diabetes and complicating disease and other diseases.