Communication plays an important role in social life as it is found in all human activities. Thanks to communication, humans can form and develop their psychology - a comprehensive personality to be able to join the various and complex social life. Currently, the communication problems of high school students in general, and ethnic minority high school students in particular are interested by the researcher. In this paper, the author refers to some communication characteristics of the ethnic minority high school students in Thai Nguyen province, such as characteristics of communication needs, communication objects and contents of communication, thereby making proposals to help the students overcome their limitations in communication.