In the cross-cultural communication class,the teacher presents some abstract cultural knowledge or specific cultural knowledge related to the traditional culture,then deepen the cultural experience by watching podcast or playing a folk game,and then let the students participate in a specific situation in person,experiencing and practicing this cultural activities,and finally the teacher clips episode of videos,producing a micro-lesson,consolidates the cultural experience,and test whether the PBL facilitate the enhancement of the students’cross cultural communicative competence by collecting and analyzing the questionnaire and face-toface interview with students.