农技推广档案是在农业技术推广活动中形成的，是农业技术推广活动的真实记录，是广大农技人员辛勤劳动的知识结晶。农技推广档案是直接记述和反映农业技术推广、示范、培训及农村开发为实践活动，经过系统整理并归档保存的科学技术材料。它包括文字材料、计算材料石纸、图表、 Agricultural extension files are formed during the agricultural technology promotion activities and are the true records of agricultural extension activities. They are the result of the hard work of agricultural workers. Agricultural extension file is a direct description and reflection of agricultural technology promotion, demonstration, training and rural development as a practical activity, systematically sorted and archived preservation of science and technology materials. It includes text materials, calculation materials stone paper, charts,