Regardless of the season, age and skin type, almost all skin problems are related to dry and dehydrated skin and reduced skin self-protection and repair mechanisms. It can be said that increasing skin moisture is the foundation and fundamental of beauty and skin care. When the skin loses moisture, the epidermal cells will be dry and flaky; dry skin loses its protective ability and is susceptible to dermatitis and itching caused by the infiltration of bacteria and harmful substances; skin that loses moisture will be dry and rough, forming fine lines and pigmentation, causing many skin problems. Modern people’s fast-paced life, stress, poor sleep, lack of maintenance, coupled with long-term life in the air-conditioned environment, resulting in the loss of skin moisture balance, dehydration and dryness is very common; and due to the increasingly serious environmental pollution, dust, ultraviolet damage to the skin more aggravated the aging of the skin. At present, there is no very effective method for improving dry skin. Some researchers suggest drinking 8 glasses of water every day to improve the dry skin problem, but many clinical patients think that the effect of this method is not obvious, while the external use of moisturizing cosmetics treats the symptoms but not the root cause. Chinese medicine believes that dry skin is caused by deficiency of Yin and Blood. Su Wen? The Five Organs Generation: “The lung is also combined with the skin, and its glory is also hair.” If the lung meridian is depleted of yin and blood, the skin will be rough and the hair will be dry and easy to fall; the kidney is the master of water and regulates the transmission of fluids in the human body; if the kidney is deficient in yin, the skin will not be moistened and the face will be dark, dry and lusterless; therefore, it is important to nourish the yin of the lung and kidney. Therefore, according to the above etiology and pathogenesis, the principle of nourishing the kidney and moistening the lung is selected as the principle of the invention: nourishing the lung and kidney yin choose asparagus, as the ruler of this formula, Zhang Xichen said: “asparagus, sweet taste, slightly pungent, cool, fluid thick and slippery, good at producing fluid to stop thirst. The nature of the fluid is thick and slippery, can facilitate the two stools, circulation of blood, smooth meridians, although it is a nourishing product, but can also benefit the qi.” Therefore, Asparagus nourishes the Yin of the lungs and kidneys, nourishes Yin, generates fluid and moistens dryness. It contains the vital energy of life, and carries a thick and slippery fluid around the body to moisten the skin; Silver Fungus nourishes and generates fluid, moistens the lungs and nourishes the stomach, and helps Asparagus to moisten the skin. The difference between the two yin nourishing herbs and other yin nourishing herbs in this combination is that they are tonic but not cloying, calm but not cold, and will not suppress yang energy in the body when taken for a long time; and the blood harmonizing herb safflower is slightly added to balance yin and yang and promote yin fluid to moisten the skin, so that the combination of all the herbs can nourish yin and produce fluid and moisten the skin. This invention provides a Chinese medicine composition to increase skin moisture, the composition consists of active ingredients and medically acceptable excipients, wherein the said active ingredients are made of the following weight parts of raw materials: asparagus 20-80, silver fungus 20-80 and safflower 1-40. the composition of this invention nourishes the lung and kidney yin, nourishes the outside and regulates skin moisture, focusing on overall regulation, with nourishing the lung and kidney, nourishing yin and blood, moistening the skin. It can improve skin moisture, effectively alleviate dry skin symptoms and delay aging, and is used to treat dry skin due to stress, poor sleep, poor diet, or long-term air conditioning environment caused by lung and kidney yin deficiency, skin dehydration and dryness, dullness and lack of luster. It is suitable for long-term conditioning of human body functions, and the composition of the invention is calm, with “medicine and food of the same source”.