Construction or civil engineering is a kind of basic necessary industry for each citizen's livelihood. Due to its characteristic of participants and tasks variety, this industry becomes highly requirement for collaboration and professional knowledge. Applying knowledge management in construction industry can improve its' operation with positive help. To illustrate the application effect and correct suitable management system, an appropriate evaluation model of performance result with constructional knowledge management system should be built. So this research uses Windows 2003 Server IIS Ver. 5.0 as the platform to develop a constructional knowledge management sharing system. Both end user and systematic function were integrated in this system. Meanwhile, this system applied three-tier structure and FrontPage to edit Web Server pages. This research also develops a performance evaluation model to check the application result of constructional knowledge management system. With the result of this research, the competition capability of construction industry could be increased. According to the main concept of this essay, the reference about performance evaluation will be collected at first. Then the current situation of internal construction knowledge management will be described. After that, scientific analysis including fuzzy Delphi method, fuzzy analytic hierarchy process (FAHP) and fuzzy theory will be used to develop an evaluation system of knowledge management performance. This model includes four levels: knowledge creation, knowledge transportation, knowledge spreading and knowledge accumulating. After developing and testing, the proof of knowledge manage the feasibility duct into the construction industry, organization decision ability and competitiveness in construction industry could be promoted through this system and to echo an objective of knowledge economy.
