The core of agricultural production relationship is the farmland institution.Since the foundation of PRC,the farmland institutional arrangement has two main adjustments.Especially,the execution of the household contract responsibility system has a deep influence on the national economic development.In recent years,the development of national economy enters into a reconstructing phase.With this background,the transformation of agricultural model will be the trend of the times,that is,not only adaptable to demands of agricultural productivity,but also beneficial to the promotion of further development of productivity.The growth of agricultural total factor productivity(TFP) is an important indicator to judge the agricultural development and the increased input of agricultural technology will be benefit for the growth of agricultural TFP.