Abstract: industrial integration is a new driving force for industrial development and economic growth. The economic growth is characterized by night light data. The regional industrial integration rate is calculated based on China's provincial input-output table. The impact of industrial integration on regional economic growth and spatial spillover effect are empirically analyzed by using spatial econometric model. The results show that there is a significant spatial positive correlation between economic growth, and industrial integration has a significant U-shaped impact on the economic growth of this region and adjacent regions; There may be a "service dilemma" in the early stage of industrial integration. With the deepening of industrial integration, it will promote regional economic growth. At the same time, this spatial impact is heterogeneous in different regions and different segments of producer service industries.
