This paper studied the development of management in 21 century. Due to the different comprehension on connotation of management, scholars have different opinions on the conception, schools and structures of management respectively. After comparison and analysis, the author concluded that the managements a subject about applied theory,which studies the organization and structure,ways and methods of the organization to assign its resourecs. He also gave his opintion upon the structure of management,that is, the management consists of 3 parts, organization, methods of management and marketing, recatalogued and redefined the evolution of management according to this standard. Bases on that, he profited that the management in 21 century would develop in 3 aspects: strengthening the management theory system , forming the methodology of management and deepening the content of management.