PURPOSE: The promotion of educators is challenged by the lack of accepted standards to evaluate the quality and impact of educational activities. Traditionally, promotion is related to research productivity. This study developed an evaluation tool for educational performance of medical school faculty using educator portfolios (EPs). METHODS: Design principles and quantitative items for EPs were developed in a consensus workshop. These principles were tested in a simulation and revised based on feedback. The changes of total educational activities following introduction of the system were analyzed. RESULTS: A total of 71% faculty members answered the simulation of the system and the score distributed widely (mean±standard deviation, 65.43±68.64). The introduction of new system significantly increased the total educational activities, especially in assistant professors. CONCLUSION: The authors offer comprehensive and practical tool for enhancing educational participation of faculty members. Further research for development of qualitative evaluation systems is needed.