At present, with the rapid development of modern vocational education in my country, many vocational colleges with first-class level are flourishing. With its advanced equipment, excellent teaching staff, and new teaching mode, they are establishing their respective backbone majors with innovative characteristics. Through the perspective of the current situation of personal information security legal regulation, some problems were found, and it was proposed to establish personal information-related legislation, strengthen the supervision system, and improve judicial relief channels. The software design of the smart classroom teaching system was developed based on the B/S model, using SpringMVC three layers Architecture and Java, Eclipse, MySQL database and other technologies, software architecture to meet cross-platform requirements as the core element.