Since opening up of China’s market，great changes have taken place in the production and circulation of economic forest products. Study on the integration of economic forest products market is realistically important to know the general operating condition of China’s forest products market, increase the income of forest farmers and improve the social welfare．Taking citrus for example，this paper, based on co- integration test and error correction model(ECM)，analyzes the integration of 16 major citrus producing and purchasing areas in China．The result shows that with the comprehensive impact of market, economic forest products market in China operates smoothly, the market basically shows the long- term integration tendency and the trend of short term integration is also obvious. In addition，this paper discusses the reasons of a few market integration.