Hierarchical teaching focuses on the teaching mode with students as the main body, developing different teaching strategies according to the different characteristics of students. Hierarchical teaching is a systematic and scientific teaching strategy, which needs to adhere to the principle of object refinement, hierarchical management and focusing on students’psychological in the implementation. In flash teaching in secondary vocational schools, we should follow the class hierarchical teaching mode, grade hierarchical teaching model and directional cultivation hierarchical mode in lesson preparation, teaching, practicing and assessment.