The Simulation Training of Earthquake Shelter Program (STEP ver 0.5) was developed, and the educational effectiveness of this program was examined. STEP presents to participant groups fictional situations such as "a strong earthquake convulsed the whole city, and you have been evacuated to the elementary school", and asks them to discuss what appropriate behavior the leaders of the shelter should take. Sixty-nine undergraduates, and 12 residents in Kobe participated in the simulation. The results indicated that STEP would be effective in education for disaster prevention.