Abstract: Informatization has played a positive role in the development of plant diseases and insect pest control courses in secondary vocational schools. However, the current students of secondary vocational agriculture-related majors are relatively poor in autonomous learning ability, and they are unable to summarize and organize the fragmented knowledge in a unified manner to construct corresponding logical thinking. Combination educational information, using T-shaped diagram, fishbone diagram and mind map three auxiliary teaching tools, designing a diversified teaching model based on the original teaching resources, can help students to carry out the fragmentary knowledge of plant disease and insect pest control courses. Effective integration enables students to master more specialized knowledge, thereby enhancing students’ learning abilities.