Abstract:The information industry is an important industry in the development of today's society and has an extremely important influence on the social and economic development including the transformation and upgrading of the manufacturing industry. This paper combines the general classification method of China's input-output table to divide the information industry into information manufacturing and information service industry, and defines 26 categories as manufacturing. Based on the input and output tables of Chongqing in 2007, 2012 and 2015, the forward and backward linkages and development trends of the information manufacturing industry and the information service industry to the local manufacturing industry, as well as the influence coefficient and the sensitivity coefficient are measured. Based on the comprehensive consideration of the relevant data of the local information industry, the paper analyzes the impact of the information industry on the manufacturing industry and puts forward relevant suggestions.