Management theory is a branch of scientific theory． The essence of theory is the development of human thought and cognition，which is divided into the classical and the non-classical． The inaugurators of classical theories possess extraordinary cognitive ability and profound thought，whose achievements have high inheritance value and strong vitality． Therefore，both of the value and prospect of management theory research，whether the deduction of classical theory or the formation of theory from excavation of the law of practice，depend on the interpretation of management thoughts and the critical thinking．