This study examined the analysis of the present condition, structure of fundraising activities, the effect of resource development and strategy for nonprofit social service organizations. This study investigated the fundraising and resource development activities of 356 non-profit organizations and community welfare centers nationwide. The results showed that a period of foundation of non-profit organization and community welfare center in Korea, was 10~14 years and organized with 13~19 workers. The community welfare centers were well prepared for the internal environment for resource development system such as workers, department, management for sponsors and computer program, while others were not prepared. Their recognition for the importance of fundraising activities was higher than the satisfaction of actual condition. The non-profit organization needs management sponsors, planning, public relations, fundraising skills and preparation proposal as the theme of education for fundraising activities. Their plans of the fundraising activity were events, proposal application, fundraising focus on companies, cause-related marketing. The non-profit organization complained of the difficulty about insufficiency manpower and skills of fundraising, external resource development and a budgetary deficit.