Abstract: During the allied occupation period, JapanU.S. relations was in a special state between a defeated and a victorious country. On the basis of its national strategic interests, in response to the threat of communism, the united states had implemented a series of targeted measures of cultural diplomacy measures in order to ensure the smooth occupation of Japan, and laid the foundation for the smooth development of the subsequent relationship between Japan and the United States. In order to consolidate and ensure the reform achievements that the united states achieved in the period of occupation, Rockefeller III had write the JapanU.S. Cultural Relations Report after he visited Japan, which had epochmaking significance of the postwar JapanU.S. cultural exchanges history. The longterm goal in the report specified direction for pushing the United States deeply development cultural diplomacy with Japan.

Key words: JapanU.S. Relations, U.S. leading, cultural diplomacy, Bureau of Civil Information Education, The JapanU.S. Cultural Relations Report