Technological methods in agricultural production have a positive impact, in line with the development of this sector requirements, and that some of the technology application of agricultural innovations need to be many economic studies, showing the efficiency of these methods and innovations, in achieving the benefit of those methods in raising the efficiency of resource use in the cultivation of crops field and even clear vision for achieving agricultural development goals In general study aimed to study the effect of technological progress on the most important field crops in Assiut, and to achieve this overall objective was sub-goals mode, it represents the first of them in measuring the impact of technological development and technology items on the productivity pen fdon Crops field in Assiut, For the wheat crop showing the effect of technological development increases in wheat production by accounting for about 41.5% of the actual average production, and that the amendment category wheat planting modern varieties led to increased production by accounting for about 8.22% of the production of items before the amendment category, and for corn show the impact of technological development, the increase in corn production by accounting for about 35% of the actual average production, and that the amendment category corn cultivate modern varieties led to increased production by accounting for about 7.23% of the production of items before the amendment category, and for sorghum shows the impact of technological development, the increase in the productivity rate accounted for about 32% of the actual average production, and that the amendment category sorghum cultivation of modern varieties has led to increased production by accounting for about 6.8% of the production of items before category amendment, and represents the second goal to identify the impact of agricultural technology on the costs and the production of wheat, maize and sorghum, where the average cost dropped total holdings in technology applied to all conventional holdings reaching in holdings applied around 6390, 6059.5116 pounds, the average total cost in traditional holdings of about 6788.6341, 5130 pounds for those crops, respectively. As for the impact of agricultural technology on the production functions found through mock changing the technology of agriculture positive impact on the function of production to move to the top and that in all crops study, The final goal is to identify the impact of agricultural technology on economic efficiency Crops Field sample study as it turns out, according for all economic indicators efficiency standards outweigh the holdings of the applicable technology from those applicable to non-technological method.