Abstract: Based on the perspective of urban and rural labor mobility, this paper analyzes the internal logic of agricultural machinery socialization services to promote the integration development of urban and rural economy, and uses the panel data of 11 provinces and cities in the Yangtze River Economic Belt from 2012 to 2021 to empirically reveal the impact of agricultural machinery socialization services on the integration development of urban and rural economy. The results show that at the 1 % level, the socialized service of agricultural machinery has a significant role in promoting the development of urban and rural economic integration. Urbanrural labor mobility plays an intermediary role between agricultural machinery socialization service and urbanrural economic integration. The promotion effect of urbanrural labor mobility on urbanrural economic integration is affected by the single threshold effect of agricultural machinery socialization service. The higher the level of socialized service of agricultural machinery, the stronger the role of urbanrural labor mobility in promoting urbanrural economic integration. Therefore, the relevant suggestions are put forward to promote the construction of socialized service organization for agricultural machinery and orderly guide the flow of urban and rural labor force.

Key words: the Yangtze River Econocmic Belt, agricultural machinery socialization service, integration of urban and rural economies, labor force mobility, panel threshold model

摘要： 基于城乡劳动力流动视角分析农机社会化服务促进城乡经济融合发展的内在逻辑，并利用长江经济带11个省市2012—2021年的面板数据，实证揭示农机社会化服务对城乡经济融合发展的影响。研究结果显示：在1%水平下农机社会化服务对城乡经济融合发展有显著的促进作用；城乡劳动力流动在农机社会化服务与城乡经济融合之间发挥中介效应；城乡劳动力流动对城乡经济融合的促进作用受到农机社会化服务的单门槛效应影响，农机社会化服务水平越高，其促进作用越强。提出推动农机社会化服务组织建设、有序引导城乡劳动力流动等相关建议。

关键词: 长江经济带, 农机社会化服务, 城乡经济融合, 劳动力流动, 面板门槛模型