Abstract: In order to solve heterogeneous problem of information platforms developed by participants of project portfolio of coal enterprise, a project portfolio information management platform of coal enterprise based on multi-Agent and grid technology was proposed, and framework of the platform, function design scheme of each Agent entity and running process of the platform were introduced. The platform utilizes grid technology to realize integration of heterogeneous platforms, so as to make participants of project portfolio achieve collaborative work. The platform also uses multi-Agent system to integrate grid environment into heterogeneous platforms, so as to realize unified configuration and management for all information platforms of participants. Validity of the platform is verified through application in a coal enterprise.