In Construction Project Management systems, how to draft a qualified tender document especially when setting a qualification policy for service providers is the first step to succeeding in a project. This study surveys previous cases of Construction Project Management and figures out the factors affecting qualification. The Case-Base Reasoning technique is also employed to act as an extra qualification setting tool. Based on acquired knowledge, a developed knowledge-based system is used to deal with the problems that a client faces in setting tender qualifications through knowledge retrieval from cases. Based on real cases, the result of this study could be a good reference for a client who wants to procure Construction Project Management services.