With the rapid development of China’s economy and society, county-level general high schools have fallen into a vicious cycle characterized by “student outflow – teacher mobility – reduced investment.” The fundamental cause lies in the imbalance between the supply and demand of educational resources. Urban high schools, benefiting from policy preferences and capital advantages, occupy a dominant position, while county-level general high schools struggle to compete due to insufficient resources. Differences among governments, schools, and families further intensify student outflow. This paper proposes reconstructing a balanced educational ecosystem through optimizing resource allocation, innovating distinctive school-running models, strengthening home–school collaboration, and improving policy safeguards. By means of institutional restructuring, this mechanism integrates the efforts of multiple stakeholders, helps county-level high schools regain confidence in talent cultivation, and provides support for educational equity and high-quality regional development.