Abstract: The function of philosophy is that it brings people aesthetic enjoyment of "wisdom-loving" through unconscious influence in philosophical mastery,thus obtaining the purpose of purifying people’s souls and educating people’s emotional appeals.In this sense,philosophy is also "beautiful".The beauty of philosophy is mainly manifested in vast state beauty using vast narrative structure as an expressing means,in deep mentally reasoning beauty with a deep probe into reflection as characteristics between existence and thinking,in Abstract beauty of theoretical practice originated from practical life but not punctilious,and the surpassing human nature beauty based on the(above) three.Only examined from the point of aesthetics,can we find out the mystery why philosophy can exist for thousands of years.