This article studies the law-based information system and feedback algorithm of higher vocational student management under the background of governing the school by law, and briefly analyzes and expounds the significance of the law-based management of students under the law-based school management and the current problems. Then it discusses the path and measures of legalized management of college student management by using feedback algorithm. Based on this, it proposes ways to formulate and improve the existing laws and regulations, enhance the awareness of the rule of law of managers and students, change the concept of student management, establish a student-oriented concept, and improve the law-based approach to the management of students in higher vocational colleges.