Cognition of human being and awareness about its Characteristics is one of the most important references that we can develop educational goals. There are many tools for cognition of human kind, such as scientific, religious, philosophical and theosophical methods'. In this article for developing educational goals, in Islamic society, nature of man was studied by a philosophical approach. For this attend, view of points of three Islamic philosophers were viewed that these are: Ibn-Sina, Sheikh Eshragh and Mola Sadra. Ideas of these philosophers in three categories, nature of spirit, reasons of existence of spirit and relationship of spirit and body, were considered.Theoretical model of this study was based on Arnold Griese perspective (1994) about educational implications of philosophy. Finally, similarities and discrepancies of three approaches were illustrated.