Investigation on 152 international students from undergraduate first grade to graduate third grade of Nanjing Medical University indicated that efficiency of social support system,adaption to the host country culture and the Chinese level were the key points related to the students’ cross-cultural adaption. Compared to girls,undergraduate students,preferring ethnic friends in social activities and who came to China had other reasons,boys,graduate students,preferring Chinese friends and who came to China to pursue the ideal showed relatively higher adaptability in different aspects among the demographic and personalized identity influencing factors.