In this paper, social support intervention is defined as social worker activities to help solve clients' problems by promoting their receipt of social support which meets their needs. Social support intervention, which focuses on a client's immediate environment and links informal and formal helping services, has a rich potential. However, social worker intervention strategies are still unclear, and some have pointed out the limitations of social support. To establish intervention strategies, it is important to pay attention to the change process of a client situation, that is, the social support process. A practice model of the social support process (Richman et al.) is presented. Tasks and procedures in each helping process (namely, assessment, planning, intervention, and evaluation) are examined. It is necessary that both strengthening of the theoretical framework of social support intervention and the development of effective programs are achieved concurrently.