Abstract:Based on China''s provincial panel data from 2013 to 2018, the internal mechanism of the integration of big data and manufacturing industry is systematically analyzed from the three levels of product, enterprise and industry, the evaluation index system of the integration level of big data and manufacturing industry is constructed from the four dimensions of integration foundation, integration application, integration power and integration benefit, and the entropy evaluation method is used to measure and compare the integration level of big data and manufacturing industry in 29 provinces and cities in China. The research shows that the integration degree of big data and manufacturing industry in China and all provinces and cities is constantly improving; the integrated level of big data and manufacturing industry shows regional differences and polarization. The integration level of big data and manufacturing industry in eastern China is obviously higher than that in central and western China. Based on the analysis, it puts forward some countermeasures to promote the integration of big data and manufacturing industry.