This paper aims to explore the differences between Eastern and Western aesthetics in product design, and to provide reference for China's products to improve their competitiveness in the international market. Starting from the expression forms of product aesthetics, combining the "YuanQi theory" and "atomism", this paper analyzes the classic design products of the East and the West, and compares the aesthetic differences between the East and the West. The aesthetic differences are mainly reflected in three aspects: expression basis, foundation and method. In product design, taking both Eastern and Western aesthetics into account and combining the advantages of the East and the West is conducive for China's products to obtain intellectual property rights in the international market and improve the market competitiveness of products.