Along with the change of agricultural operating body and the implementation of new Law of Agricultural Technology Extension,the research on agricultural technology extension has aroused universal attention.Nowadays,our research of agricultural technology extension focuses on the practice in agricultural technology extension,highlights the investigation for public welfare extension service and research for non-government agricultural extension service,protrudes the effectiveness analysis and innovation of agricultural technology extension service,and follow the tracks of the construction of modern science and technology service industry.However,there are many drawbacks in terms of theoretical evidences,research objects,research methods and perspectives,such as the lack of local theoretical contribution,the insufficient group balanced sampling,and the shortage of intrinsic mechanism study,the combination of qualitative and quantitative analysis and the intersection of multi-disciplines.This paper proposes to strengthen the creation of basic theory,attach importance to the comprehensive investigation,improve the integrated qualitative and quantitative research,reinforce the multi-perspective analysis and dedicate to the construction of a scientific mechanism．