Abstract: An index evaluation system including development quality and benefit, innovation ability, environmental protection and people's livelihood is constructed.In 2008-2018, China's development inadequacy decreased at an average annual rate of 2%, of which environmental protection contributed the most; however, the regional imbalance of the development inadequacy is growing. To improve the quality, efficiency and innovation ability of the development of the western region is the key to improve the inadequacy of development in China.

Key words: inadequate development, statistical measurement, major social contradictions