Among the institutions in charge of emergency management, the non-governmental organizations have a special place as efficient and complementary public sector institutions in achieving development goals. These organizations, and at the head of them the Red Crescent Society, play an effective and constructive role in successful management of emergency due to their capabilities such as the ability to create deep local connections, public awareness, flexibility and rapid response and thus their participation in crisis management leads to an improvement in the situation. Given the importance of this role, the article intends to study and analyze the function of NGOs in emergency management, based on the duties of the Iranian Red Crescent Society, using a descriptive-survey method and in order to provide a conventional model. For this, the expert members and groups of NGOs in the Iranian Red Crescent are considered as a statistical population. 381 people of them have been selected by stratified random sampling. Also, data were collected through a questionnaire and analyzed using structural equation testing. The validity and reliability of the tools have also been confirmed. Findings indicate that the role of NGOs on the tasks of the Red Crescent in emergency management is positive and significant and the proposed model has a good fit.