The invention discloses a liver-protecting kidney-strengthening detoxifying lipid lowering drug and a preparation method thereof, the liver-protecting kidney-strengthening detoxifying lipid lowering drug is composed of the following components by weight: 10-25% of mushrooms polysaccharide, 15-30% of coriolus versicolor polysaccharide, 15-30% of ganoderma lucidum polysaccharide, 10-25% of lycium barbarum polysaccharides, and 15-30% of red date polysaccharide. The mushrooms polysaccharide, coriolus versicolor polysaccharide, ganoderma lucidum polysaccharide, lycium barbarum polysaccharides and red date polysaccharide are processed into fine powder, proportionally mixed evenly, and processed by drying and sterilization into Chinese patent powder, the sterilized and evenly mixed Chinese patent powder is packed into a capsule tube instrument for sealing to obtain a capsule agent. The liver-protecting kidney-strengthening detoxifying lipid lowering drug has the advantages of simple process, fine and pure product, low cost, natural raw material plant, no any toxic and side effects, no addition of add any chemicals and excitants, people immune function can be enhanced, physical fitness can be improved, the liver-protecting kidney-strengthening detoxifying lipid lowering drug has the effects of protecting liver, strengthening kidney, lowering blood lipid and detoxifying, has remarkable medical and health care effects, ad can make people far away from sub-health.