Abstract: Since the reform and opening-up, China's society has entered a period of rapid development and structural transformation. The rural organizational structure and the organization of farmers have undergone profound changes. The traditional old organizational structure has begun to collapse, and new social organizations have emerged. The transition process is characterized by decentralization, rationalization and regulation. The changes of rural social organizations in the northwestern region during the social transition period have analyzed and studied, in order to grasp the characteristics and logic of the transformation and change of rural social organizations in the northwest.

Key words: social organization, social transformation, northwestern countryside