The invention relates to a Chinese medicinal preparation having functions of enhancing immunity, promoting digestion and improving sleep. The Chinese medicinal preparation is prepared from the following Chinese herb medicines: rhizoma polygonati, medlar, spiny data seed, Chinese yam, tuckahoe, Chinese date, hawthorn, endothelium corneum gigeriae galli, fructus cannabis, rhodiola root, rhizoma atractylodis macrocephalae, epimedium, ganoderma lucidum, tortoise-shell glue and the like. The Chinese medicinal preparation has functions of tonifying kidney and spleen, invigorating Qi and nourishing blood, promoting blood circulation to dispel blood stasis and harmonizing internal organs and is used for treating and relieving senility symptoms, such as tiredness and fatigue, inappetence, insomnia and amnesia, soreness of waist and knees, dizziness or lightheadedness, nycturia, osteoporosis and susceptibility to common colds, which are caused by the deficiency of liver and kidney and hypoimmunity, of middle-aged or old people. Furthermore, the Chinese medicinal preparation can restore the immunity of middle-aged or old people and effectively treat and prevent cardiovascular diseases. The Chinese medicinal preparation has health-care functions of immunoregulation and senility deferment, is safe, does not have side effects, and can be taken for a long time.