In the grassroots social governance structure of collaborative governance，social organizations，as important external forces involved in grassroots community governance，play an important role in regulating and guiding，cultivating and empowering，building platforms and linking mechanism construction. Through field research，we found that social organizations adopt the strategy of “systematic guidance and accompanying participation” throughout the social governance projects，and choose different participation paths in the face of different community governance subjects. In the face of community committees，social organizations adopt the cooperation path under the logic of “service effectiveness”；in the face of community residents，social organizations adopt the mobilization path under the logic of “demand orientation”；in the face of community social organizations，social organizations adopt the accompanying growth path under the logic of “effective operation”. In the face of the existing problems，it is necessary to continue to explore the path of integrating social organizations into community governance from the grassroots government and social organizations themselves.