Firstly, the concept of PBL is discriminated, and pointed out the characteristics of PBL. Secondly, summarized the selection method of PBL project. Then summed up the formation of the project team, and pointed out a more appropriate size of the team. Then we described the implement subject of performance evaluation and its assessment methods. And we also pointed out that the matters should be noted during the process of the implementation of the PBL. Finally, we indicated the future research directions of PBL.