Abstract: ObjectiveAgricultural informatization evaluation index system was established,and the current situation and differences of agricultural informatization in the eastern,central and western regions of China were analyzed,so as to optimize the allocation of resources ,improve the utilization efficiency of resources,and promote the development of agri-cultural informatization and modernization.Method"Agricultural informatization"layout,with infrastructure,applica-tion and benefit levels as the core,was used as classification indicator. Principal component analysis was conducted to ex-tract the influencing factors,and agricultural informatization evaluation system was established. Agricultural informatiza-tion development levels of eastern,central and western regions of China in 2015 were measured on this basis. At the same time,super efficiency analysis method based on factor analysis was applied to study the difference in resource input and benefit output of agricultural informatization in 31 provinces(municipalities and autonomous regions).ResultAn agri-cultural informatization development level evaluation system covering three primary indicators(agricultural informatiza-tion infrastructure,agricultural informatization application and agricultural informatization benefit)and other ten secondary indicators was established. The informatization development level evaluation result indicated that the gap among east-ern,central and western same regions of China was obvious,and the average scores were 0.516(eastern region),-0.107 (central region)and -0.402(western region)respectively. The development of different provinces(municipalities and autonomous regions) in the same regions was also unbalanced. The agricultural informatization development level of Jiangsu in eastern region was the highest with comprehensive score 1.251;but the development level of Inner Mongolia in western region was the lowest with comprehensive score-0.686. According to input-output analysis,the comprehensive score for Shanghai was 0.495. But input redundancy was the highest,resource input did not match output efficiency.SuggestionThe following suggestions are proposed to promote agricultural production and informatization integration development:adjusting the development model of agricultural information,rationally allocating resources,increasing investment in science and technology,strengthening inter regional cooperation,actively expanding the agricultural e-commerce platform,improving farmers awareness of informatization.