As a pilot unit of the comprehensive reform of Chinese supply and marketing cooperatives，based on the agricultural characteristics and the reality of supply and marketing cooperatives in Guangdong Province，the Guangdong Supply and Marketing Cooperatives chose the reform path that using the provincial leading enterprises to construct the modern business service system，building a service platform to construct the agricultural comprehensive service system，innovating the governance mechanism of the cooperative union to establish the organization system.This paper adopts the data of field investigation and third party evaluation，analyzes the background and path selection of Guangdong Supply and Marketing Cooperatives comprehensive reform，sums up the concrete methods and effects，analyzes the existing problems，and then puts forward relevant proposals.By authors' opinion，the core of Guangdong Supply and Marketing Cooperatives comprehensive reform pilot is to promote the supply and marketing cooperatives closely linked in diffident level by linking property rights and business，and this experience has popularization value.Certainly，it should be observed that although the comprehensive reform pilot of Guangdong Supply and Marketing Cooperatives has achieved positive results in the field of business services，but the reform of system and mechanism is backward，and which is the direction and focus of the comprehensive reform in the next step.