Agricultural technology popularization refers to the activities of popularizing scientific and technological achievements and practical technologies suitable for planting, forestry, animal husbandry and fishery in the whole process of agricultural production before, during and after delivery through experiments, demonstrations, training, guidance and consulting services. Principles to be followed: it is beneficial to agricultural development; Respect the wishes of agricultural workers; According to local conditions, through experiments and demonstrations; Support from the state and rural collective economic organizations; The implementation of scientific research units, relevant schools, extension agencies and mass scientific and technological organizations, researchers and agricultural workers; Emphasize the economic, social and ecological benefits of agricultural production.

Agricultural extension in a broad sense is a rural social education with rural society as the scope, family farms or farmhouses as the center, farmers' actual needs as the content, and improving farmers' quality of life as the ultimate goal. Modern agricultural extension is a dynamic process (educational process) to convey useful information to people and help them acquire necessary knowledge, skills and correct views in order to effectively use these information and technologies.