Taking the Beijing-Tianjin-Hebei urban agglomeration as an example, the panel data of advanced manufacturing sub-sectors from 2011 to 2020 is selected. The coupling coordination degree model and the EG coefficient model are used to analyze the current situation of the integration of sub-sectors and modern service industries and the evolution trend of industrial agglomeration. The multiple regression model is used to empirically analyze the impact of industrial integration, industrial agglomeration, external environmental impact, industrial structure and industrial behavior on industrial performance. The results show that the coordinated development of sub-sectors shows different characteristics, and the uneven development between industries will inhibit efficient integration to a certain extent. Although advanced manufacturing industry has reached a high level of industrial aggregation, but running-in between regions is still insufficient，industrial integration and industrial agglomeration have a significant driving effect on improving the performance of advanced manufacturing industry, and the other aspects also have a certain contribution to the development of industrial performance. Therefore,recommendations are proposed from three aspects,including the industrial agglomeration layout tailor-made, focusing on promoting the deep integration of the two industries, building innovation community to enhance the performance of advanced manufacturing industry.