The main purpose of product design is to help people to solve various problems in life and satisfy people's demands in material aspects and spiritual aspects. In order to answer the nation's scientific development strategic deployment of loving nature, protecting nature and living in harmony with nature, product designers are required to not only satisfy people's basic demands of the product, but also consider the close relationship between human beings and nature when designing products. Product design should establish ecological awareness. However, with the rapid development of Chinese economic society and the quick development of industrialization, large amount of products that go against green natural ecology exist in people's life. Human beings just ask for things from nature and ecological unbalance happened, which brought severe influences on sustainable development. Therefore, the concept of ecological aesthetics should be integrated to product design so as to realize the harmony between human and nature. This paper explains the significance and importance of ecological aesthetics in product design and introduces application of product design in ecological aesthetics. Before the industrial revolution, product design in human society was mainly traditional handicraft. Since there was no modern machinery production, handicrafts mainly relied on labor force. Therefore, human activities had little impact on ecological environment and human beings lived in harmony with nature. However, with the development of industrialization, in modern industrial civilization, bourgeoisie proposed the slogan of "utilizing nature and transforming nature" and conducted business and industry product, which led to people's pursuit of asking for natural resources, excessive utilization of natural resources and ecological unbalance. Therefore, large amount of natural disasters because of ecological unbalance happened. Later, destruction to natural ecological environment has been catching people's attention. With the progress of the society and development of social civilization, people's life views, world outlook and values have changed and their attitude to nature has also changed; they realized the importance of ecological civilization as well as the importance of the harmony between human and nature, and they created the ideology of ecological aesthetics. Ecological aesthetics gradually becomes an important basic element that modern designers must consider to design products.