Under the background of the “Belt and Road initiative”，more and more international students in China become intercultural emissaries of national image communication.This paper focuses on intercultural media contact and China's image perception of international students in China，and adopt semi-structured in-depth interviews，deeply investigates international students' intercultural media contact behavior model and the way they perceive China and their deep motivation.There are mainly three research findings：（1）The intercultural media contact of international students in China is closely related to their interpersonal communication and intercultural adaptation，and shows the characteristics of three-dimensional circle.（2）International relations，economic development，education and interpersonal communication are the four dimensions of their perception of China's image.（3）Intercultural media contact and direct experience are the main factors that affect their perception of China's image.Therefore，it is necessary to optimize the path of Chinese image construction on the basis of intercultural communication according to the characteristics of intercultural media contact and direct experience of the international students in China.