Iran may be a small country in the world，but in the Middle East it is a real big country，and it is a country of the impact in the world. Since the Islamic revolution in 1979，Iran’s domestic and foreign affairs has distinguishing features，often attracts the attention of the countries all over the world. Khamenei as the leader of the Islamic revolution and the founder of the Islamic republic，its political philosophy determines the today’s Iran’s power structure and institutional arrangement，also deeply influences Iran’s domestic and foreign affairs. Khomeini’s political philosophy is based on his life experience，and gradually formed in the process of politics. In this paper，from the family tree and lineages of Ayatollah Ruhollah Khomeini，briefly carding way to his life experiences，education，political process and its performance in the Islamic revolution，generalize his political philosophy and political wisdom.