The relationship between man and environment is one of the main topics which has been researched and debated for a long time in geography. We know, there are many schools have proposed different ideas about it. No matter how they emphasis in the influence of environment on man or man's impact on the environment, the relationship of man-environment is interactive, dynamical. How to control the complexity and mysteries between the two points and built the consistence of the relationship of man-environment concept is very difficult. Behavioural Geography is the new topic which is built by the geographical scholars who study and analyze the relationship between man and environment deliberately recently. We hope this article will do the research and description about the theory and development of this new subject.