In the information age, middle school safety education should pay attention to the formation of the joint efforts of schools, families and communities, and build a "trinity" safety education system; It is also necessary to give full play to the characteristics and advantages of informatization and attach importance to the construction of the linkage mechanism of "three modernizations"; Finally, form the integration of safety education forces and build a good safety education platform.

With the advent of the information age, safety education in middle schools is also facing increasing pressure. On the one hand, information network has brought a great impact on students' safety education, especially online fraud, and junior high school students are easily tempted by online information such as games, pornography and violence, leading to unsafe incidents; On the other hand, under the condition of informationization, the middle school safety education system has not kept pace with the times to promote the construction of the "trinity" safety education joint defense system of schools, communities and families, resulting in a fragmented state of campus safety, family safety and community safety, and the three have not formed a joint force and linkage. Therefore, it is extremely urgent to build a junior high school safety education system with trinity of school, family and society in the information age. The author discusses the construction of safety education system from three aspects: the construction of education system, the function of information technology and the construction of safety education platform.