Abstract: The development of China's dairy product consumption structure is unbalanced,liquid milk production and sales account for an overwhelming proportion,and a large number of dry dairy products need to be imported. Based on the proportion of the consumption structure of dairy products from 2016 to 2020, this article analyzed the current development stage of China's dairy products,the comparison of the import volume of various dairy products,and combined the new industrial policies of dairy products and the analysis of physical and chemical properties to predict the new trend of the dairy market. And used the principal component analysis method to establish the evaluation model of food nutrition,calculated the score of each dairy product to evaluate its nutrient content. The research results showed that China’s dairy product consumption structure is transitioning from the second stage to the third stage,and the market demand for cheese products in China is promising. At present,most of China’s cheese products rely on imports,but the taste of foreign cheese products is not accepted by most consumers in China,therefore,dry dairy products with high nutritional value and good taste have great development potential in China,and at the same time,Chinese consumers are changing from "drinking milk" to "eating milk". This article analyzed the current status and nutritional components of dairy products,which can guide the research and development of new products suitable for Chinese consumers.

Key words: dairy products, principal component analysis, consumption structure, physical and chemical properties