Abstract: Farmland preservation is a fundamental national policy of China. With fast urbanization and population growth, the policy of farmland preservation in China is increasingly challenged. Based on the brief introduction of farmland preservation policy from six developed countries, cross-national analysis of farmland preservation policy is conducted in this paper with aspects such as characteristic, experience of success etc. At the same time, the measures of farmland preservation from the mentioned countries are concluded which is expected to be helpful for farmland preservation in China.