中文摘要：

基于贵州省湄潭县、金沙县和施秉县543名土地流转农户的问卷调查,实证分析了＂差序格局＂社会关系对农地流转契约选择的影响。研究结果表明：＂差序格局＂关系显著影响到契约形式选择,血缘和地缘越接近,农户越倾向选择口头契约。当农户拥有党员身份、土地流转年份越近、流转土地面积越大和租金为货币形式时,农民则越可能选择书面契约。进一步分析表明,转出户受到了血缘和地缘关系双重影响,而转入户只受到地缘关系影响,＂差序格局＂对两种农户的影响存在差异。

英文摘要：

Based on 543farmers＇ questionnaires of Meitan County,Jinsha County and Shibing County in Guizhou Province,we conduct an empirical analysis on agricultural land transfer contract,and try to test the relation between the Pattern of Difference Sequence and the contract selection.The results show that social＂structure＂can significantly affect the form of contract choice.When the＂pattern＂（blood and geopolitical relations）is close,farmers tend to choose the verbal contract.However,Party membership,short time of transfer,larger area of transfer and the form of currency rents can promote farmers＇ choice for written contract.Further analysis shows that households that turn out land can be affected by the double impact of kinship and geopolitical relations,but those who acquire land can only affected by geopolitical relations,which means the Pattern of Difference Sequence has different impacts on the two types of farmers.