Abstract: Social organizations' participation in elderly care is the only way to promote the diversified development of elderly care,and also the key to advance the modernization of China's system and capacity for governance.Based on the participatory governance,the logical framework of social organizations' participation in elderly care can be constructed from institutional environment,subject type and practice method.From the perspective of institutional environment,the participation of social organizations in elderly care is characterized by the opening and encouraging of macro-institutional environment,the loosing of micro-institutional environment,and fuzzy constraints in implementation environment.It is necessary to further optimize the institutional environment and better stimulate the vitality of social organizations.From the perspective of subject type,the main types of social organizations participating in elderly care can be divided into the supplying social organizations and the supporting social organizations,which emphasize professional service advantages and diversified resource support.From the perspective of practice method,social organizations mainly participate in elderly care by undertaking community-home elderly care,operating elderly care institutions,launching voluntary elderly care,organizing mutual-aid elderly care,and participating in policies,mobilizing resources and self-regulation.

Key words: social organization, elderly care, institutional environment, service organization, community, government