As economic development enters a new normal, regional cooperation has become an important means to promote economic growth. As a leader in promoting economic development in China, the Beijing Tianjin Hebei region plays a positive role in driving the development of surrounding areas. Taking Chaoyang, Liaoning as an example, due to its marginalized geographical location and insufficient development potential, it is necessary to seek economic circles to drive its development. The article started from the perspective of similarity of leading industries and concludes that it was extremely difficult for Liaoning Chaoyang to integrate into the Beijing Tianjin Hebei economic circle by calculating location entropy and isomorphism coefficient. Therefore, in the context of new regional cooperation, it is necessary to increase industrial interaction between both sides, optimize industrial structure, and strengthen regional division of labor and coordination.