Abstract: The background of the formation of Daisaku Ikeda′s philosophy of harmony is discussed mainly from the aspects of society，nature，human spirit and creation.The philosophy of harmony is reflected in the following three ways：equality (realization of symbiosis)，cherish life，and peopleoriented，create happiness and maintain dignity.Daisaku Ikeda′s philosophy of harmony can be promoted by way of extensive dialogue and communication between cultures，human revolution via literature，exchange activities through educational means，etc.

Key words: Daisaku Ikeda, philosophy of harmony, time background, cherish life, maintain dignity 