When identifying project risks, a checklist created from the former projects tends to be used. However. each project has its uniqueness. If we would like to make a check list comprehensive and available for every project, it would end up containing large amount of items to be checked. Also that type of checklist could prevent a project manager from considering its essential risks in the project and make the risk identification process routine. As a result, it could decrease the effectiveness of risk management, especially when it's done by ail entry-level project manager. In this research, methods for creating a useful checklist to reduce these problems are discussed, by using knowledge based risk identification support system which extracts a few yet important check items depending on the characteristics of a target project.