We live in a world, which is becoming a Global Village in which information and communication attract people's attention more than ever before. Our desire to communicate with strangers and our relationships with them depend on the degree to which we are effective in communicating with them. There are so many factors restricting or improving people's communication. This essay gives an analysis based on one factor called stereotypes. In intercultural research, the influence of stereotypes on people's behaviors in communication is a very important issue to take into account. This paper aims to illustrate stereotypes from the aspects of their social and psychological perspectives, great influence on people's communication, the problems they may cause, and some solutions.