The new generation of information technology has become a key force in promoting industrial transformation and economic development in the world today. Research on the coupled development of the new generation of information technology manufacturing and service industries in Beijing-Tianjin-Hebei will promote the development of the new generation information technology industry and better realize the collaboration of Beijing-Tianjin-Hebei Development is of great significance. This report takes Beijing-Tianjin-Hebei as the research object，constructs a new generation of information technology industry chain and innovation chain integration development evaluation index system，analyzes the development trend of the new generation of information technology industry and its sub-industry，adopts coupling degree and coupling coordination degree model，an empirical analysis of the effectiveness of the new generation of Beijing-Tianjin-Hebei information technology industry coupling. The research concludes that the new-generation information technology industry in Beijing-Tianjin-Hebei continues to expand in scale and optimize its structure；the number of new enterprises is growing rapidly，and the number and speed of new enterprises in the new generation information technology service industry is much higher than that of the new generation information technology manufacturing industry；The new generation of information technology industry is full of innovation power. Compared with the new generation of information technology service industry，its manufacturing industry needs to further enhance its innovation power；the Beijing-Tianjin-Hebei new-generation information technology industry coupling degree is in a low-level coupling stage as a whole，and the coupling coordination degree is seriously out of balance，but the overall development is gradually developing in a more coordinated and orderly direction.