Abstract: In recent years,enclave economy as an important mode of regional cooperation has been greatly developed in China,which plays an important role in realizing the complementary advantages of cross administrative regions and promoting the balanced development between regions.Through the extension of enclave economic connotation,this study analyzed the possibility of economic development and regional cooperation mode of enclave to promote regional economic development,and analyzed the existing enclaves in the Yangtze River Delta,and found that the enclave economic development model could greatly enrich the connotation of high-quality regional integration development in the Yangtze River Delta.Because the construction of the enclave is not mature,we must improve the system construction,clarify the organization and leadership,and establish the benefit sharing mechanism to promote its construction.

Key words: Yangtze River Delta, enclave economy, regional cooperation, strategy