With the development and transformation of the medical model of medical technology, people's demands of medical services is increasing, the overall quality of community health workers put forward higher requirements for medical education also presents new challenges. The overall quality of health workers are required more higher by community, it also give medical education a new challenges. Limitations of traditional medical education is exposing increasingly, it's difficult to adapt to the rapidly changing needs of society, an urgent need to explore and reform medical education model. According to differences between groups of students in different education levels, we analysis the feasibility of the introduction of PBL to the teaching of medical students, PBL teaching method is an effective means to improve the quality of our medical students train. Application of PBL teaching is quilt mature; it has obvious advantages in improving students' ability to solve practical problems of cooperation and self-learning training innovative thinking ability has obvious advantages. In recent years, the PBL has become a model of medical education on a wide international concern, some of our medical colleges have also launched PBL teaching practice, but still in the exploratory stage, the gained experience still don't have too much.