With the rapid development of information technology, computer network security has become a focus of social attention. This article explores the teaching innovation and practice of Computer Network Security from the perspective of "ideological and po‐ litical guidance, integration of industry and education", aiming to cultivate outstanding talents with high awareness and skills of net‐ work security. The course utilizes Xuexi Tong APP to carry out blended online and offline teaching. Through the reconstruction of course content, improvement of teaching modes, innovation of teaching methods, integration of ideological and political elements, reform of teaching evaluation, and promotion of teaching effectiveness, the educational philosophy of "moral education first, studentcentered, integration of industry and education, and continuous improvement" is adopted to achieve the deep exploration of ideologi‐ cal and political elements in the course while imparting professional knowledge, integrate professional knowledge of network and se‐ curity with production practice, strengthen school enterprise cooperation, continue teaching reform, and build a learning community for teachers and students.