Abstract: Vocational education teaching activities have unique industrial attributes, and the construction of its quality evaluation model needs to select more scientific evaluation subjects, more intuitive evaluation criteria and clear and feasible evaluation process.Based on the PDCA cycle theory, this paper adopts the core "basis point" to streamline the whole process of vocational education teaching quality evaluation, and selects each quality early warning observation point from it for the self-evaluation and optimization of vocational education teaching system, so as to achieve accurate evaluation and reshape the education and teaching ecology.

Key words: School-enterprise cooperation, Quality evaluation model, Early warning observation, PDCA cycle