With the establishment and improvement of the socialist market economic system, the transformation of government functions and the deepening of reform, social organizations continue to improve and develop, and gradually play an important role in public management. But its problems and difficulties are also increasingly prominent. Based on the theory of resource dependence, this paper studies the two local social organizations in S Province through participatory observation and semi-structured interviews, and goes deep into the internal volunteer service of the two social organizations to understand the problems they face in development, and puts forward the corresponding optimization path in combination with the actual situation. The purpose of this study is to provide a practical reference for local social organizations to break through the bottleneck of volunteer service development and promote the sustainable and healthy development of volunteer service.