The purpose of this study is to suggest a direction for strengthening the competency of the non-profit sector, which plays an increasingly important role in the disaster management process. First of all, problems in the current public-private partnership were reviewed, and the direction of cooperative governance centered on the non-profit sector was presented. In addition, the study emphasized alternatives to strengthen the capabilities of volunteer organizations, which are representative non-profit organizations at disaster sites. Above all, disaster volunteer organizations need to secure a professional and differentiated status as a key decision-making stakeholder at disaster sites. As a result, the directions of change to strengthen the competency of the non-profit sector are organizational redesign through overall job analysis of the organization, securing expertise in disaster types occurring in the region, establishing one direction based on strategic planning. In addition, activation of communication to build trust with local residents and sophisticated decision-making and analysis skills will be required.