Abstract: The article explored the significance of teaching mode reform, basic situation, existing problems and countermeasures for the plant chemical protection cross-school credit project. In view of the existing situation about some students lacked initiative in learning, too long video and imperfect assessment, some countermeasures, such as enriching the interactive links of online learning, strengthening the supervision of students' learning network, implementing fragmentation lectures and optimizing course assessment were presented in this paper. The paper aimed to provide useful references for the successful implementation of cross-school credit, improving the course network and teaching of plant chemical protection.

Key words: Cross-school credit, Plant chemical protection, Teaching reform