数字时代背景下，地理空间数据安全已成为总体国家安全观教育的重要组成部分，也是落实高中地理学科核心素养培养要求、开展总体国家安全观教育的关键载体。针对地理空间数据泄露风险加剧与总体国家安全观教育融入学科教学不足的现实问题，本文以“地理+思政”双师协同公开课“守护数据安全，筑牢网络防线”为实践案例，立足地理学科空间认知、地理信息技术、区域安全与国家版图意识等核心内容，结合思想政治学科总体国家安全观、法治观念与公共参与等要求，构建“真实情境驱动—技术原理解析—风险识别研判—多元治理建构”的跨学科教学路径。实践表明，地理与思政深度融合能够有效打通知识、技术、安全与法治之间的内在关联，促进学生空间思维、综合思维与国家安全意识协同发展，为中学课堂开展总体国家安全观教育提供可复制、可推广的实践模式。

In the digital age, the security of geospatial data has become an important part of national security education, and it is also a key way to implement geographical key competences and conduct education on the overall national security perspective in high schools. Facing the growing risks of geospatial data leaks and the lack of integration of national security education into subject teaching, this article takes the dual-teacher collaborative public class "Protect Data Security, Strengthen the Cyber Defense" as a practical example. It focuses on core geography content like spatial cognition, geographic information technology, regional security, and national territorial awareness, while also incorporating requirements from political education such as the overall national security perspective, legal awareness, and public participation. The study builds an interdisciplinary teaching path of "real-world scenario-driven — technical principle analysis — risk identifi cation and judgment — multi-level governance construction." The research shows that deeply integrating geography and political education can eff ectively connect knowledge, technology, security, and law, promoting the co-development of students' spatial thinking, holistic thinking, and national security awareness. It provides a practical model for secondary school classrooms to carry out overall national security education that can be replicated and promoted.