Zhangjiakou Chaer Dairy Co., Ltd. mainly designs and develops dairy products and infant formula. With the development of product lines and the increase of product type, new requirements for enterprise web design and product package design emerge. Through extensive market research, we conducted integrated research on domestic and foreign milk powder and dairy product websites, and finally prepared the current design plan. We completed the design and production of plane materials such as corporate brochures, reusable bags, and business cards; and conducted affinitive and sentimental design of new products "Mengguaiguai" and "Mengba" infant formula package. Meanwhile, according to new development requirements, combined with hand-drawn animation, we revised enterprise website and normalized VI so as to achieve the whole unification of online display and offline material design style.