Agricultural science popularization represents a crucial aspect of the socialized services provided by Science and Technology Backyards，playing a pivotal role in the transformation of agricultural scientific knowledge and technology into the agricultural production sector. This model is embedded within the overall structure of Science and Technology Backyards. Currently，agricultural science popularization faces challenges due to factors such as the segmentation of rural“acquaintance societies”，the complexity and diversity of agricultural issues，the uneven distribution of science popularization personnel，and the slow digital transformation. These factors lead to difficulties in establishing trust，insufficient personalized supply，unequal opportunities for science popularization，and relatively singular dissemination channels. By integrating Science and Technology Backyards into rural production and life，focusing on farmers’individual needs，consolidating talent resources，and enriching the forms of science popularization，they effectively address the general issues in agricultural science popularization and bridge the last mile in the transformation of agricultural science and technology into agricultural production. To enhance the efficiency of the agricultural science popularization model of the Backyard Science and Technology，it is recommended to accelerate the construction and improvement of the quality and quantity of Science and Technology Backyards，to promote the diversification of science popularization categories，to establish mechanisms for diverse participation，and to optimize the layout of agricultural network science popularization. These measures will better enable Science and Technology Backyards to fulfill their role in promoting agricultural technology.