Farmland abandonment and its management is an important issue that has garnered significant attention. This paper constructs an analytical framework of “Contiguous Planting - Vertical Division of Labor-Agricultural Land Abandonment” to examine the impact of contiguous planting on farmers’ abandonment behavior and its underlying mechanisms.The analysis reveals that participation in contiguous planting significantly inhibits farmers’ abandonment behavior；for each unit increase in the degree of contiguous planting， the likelihood of abandonment decreases by 4.1% to 4.6%.Mechanism test indicates that the service scale created by contiguous planting allows farmers to outsource their involvement in production processes， thereby reducing farmland abandonment. Scenario analysis shows that in situations where the slope of the land is steep or accessibility is poor，the inhibitory effect of contiguous planting on farmland abandonment is relatively limited.However，if the government implements basic farmland consolidation，whether through engineering construction or property rights adjustment，it will significantly enhance the inhibitory effect of contiguous planting on farmland abandonment.Furthermore，the effect of contiguous planting on reducing abandonment is more pronounced for migrant workers families compared to purely farming households.Additional evidence suggests that effective implementation of contiguous planting largely depends on the degree of village organization.The higher the degree of village organization，the better the implementation effect of contiguous planting.Therefore，the paper holds that promoting the specialization of regional crop layout through contiguous planting is an important approach to govern farmland abandonment through service-scale management.