Abstract:This paper focuses on the group of Yellow River embankment maintenance workers, analyzing the underlying causes and social impacts of the decrease in their numbers and the transformation of their roles. With the widespread application of mechanized and intelligent technologies, traditional manual work positions such as rammed earth patrols have gradually been replaced by unmanned aerial vehicle (UAV) inspections and automated monitoring systems, leading to a significant decline in the number of frontline embankment maintenance workers. The remaining labor force is shifting towards technical operation and equipment maintenance, requiring mastery of new skills such as remote sensing data analysis and mechanical maintenance. The reduction in numbers is driven by multiple factors, including the technological substitution effect, population aging, the migration of young labor to cities, and institutional reform policies. This transformation not only improves governance efficiency but also brings about issues such as pressure on skill upgrading for maintenance workers and adaptation of social security, providing policy insights for the transformation of the labor market and the sustainable management of the Yellow River.