Great States are always occupied the most part of international politics,even history. After the Second World War, number of Small States are growingup to the unprecedent high. The power of Small States acted more active and important in international political stages than ever, especially small nicke states. The author try to describe the Small States'position and foreign policy fromancient to present. Theory of Small States can be disscussed in many way : history fate, neutral, non-aligned, aligned, developed, developing, situational,weak, and behavioral in international systems or organizations. The author agree that Small States have more chances to or get strength if they can developtheir domestic affairs in right many and penetrate their foreign ability in pro-per time.

　　The author also appreciate mant Small States use their limited resources to promote their international position and develop states strength, which are niche states. Niche state is one of the features after the Second World War,design their special military,economics and diplomcy ability to participate world affairs and construct their own security and development. Many of small niche states connected well in foreign policy and aid which earned interantional reputation Foreign aid has been the part of foreign policy,not only for the diplomatic consideration but also domestic courses.

　　International opinion, especially from Third World States, consideded the small statesas donors are more generous and helpful than Great states. The author argued Small States and Great States have same foreign considerations that the givingforeign aid are according to satisfy their own interests. The author select eigh Small States to show how can these states use foreign aid to keep or promotetheir interests. They are Switzerland, Sweden, The Netherlands, Kuwait, Israel,Cuba former East Germany and South Korea.

　　In conclusion, the author suggested the government of the Republic of Chinathat they can do more things in foreign aid affairs in order to promote state'sinternational in depth (stuff tranning, organization strengthen, policy priority) and broad (military aid, consortium, humanism).