The invention discloses a peach gum composition. The peach gum composition comprises 30-50 parts of a peach gum extracting solution, 15-20 parts of trehalose and 35-50 parts of glycerine. A preparation method of the peach gum extracting solution comprises the steps of (1) mixing peach gum raw materials with water to obtain a peach gum mixed solution; (2) heating the peach gum mixed solution to 60-90 DEG C, and maintaining the temperature for 1-3h; and (3) filtering the mixed solution in the step (2), wherein filtrate is the peach gum extracting solution. The peach gum composition has favorableand timely moisturizing efficacy, and besides, has notable effects of resisting oxidation, improving skin roughness and resisting inflammation. After being used, the peach gum composition can enablethe skin to be soft, fine and smooth. The preparation method of the peach gum composition is simple in technology and low in cost, the extraction efficiency is high, and product safety is good. Besides, the peach gum composition has favorable filming properties, can realize lubrication and be skin-friendly, can be used as raw materials for skin-care products, and can be widely applied to skin-careproducts of various preparations, such as emulsion, cream, lotion and jelly.