With the rapid economic development of the Pearl River Delta, the contradictory of the population, resources and the environment has become more and more incisive, and grind the sustainable development of this area. Analyze the reason of the problems, proposed that construct the regional circular economic system of the Pearl River Delta is an inevitable choice for the sustainable development of the Pearl River Delta. The construction of the regional circular economic system of the Pearl River Delta can be carried out from the following three aspects. First, strengthen the integration of city g...