The invention belongs to the field of a big data technology and enterprise performance management, and particularly relates to a KPI-based fan manufacturing process-oriented comprehensive quality checking system. In order to solve the problems of defects in quality monitoring management and low system query and response speeds under a big data condition, the invention provides the KPI-based fan manufacturing process-oriented comprehensive quality checking system. The system comprises a functional module, a KPI, a KPI analysis module, a database, a client and a server. The system adopts a B/S mode-based three-layer system structure; the KPI is fused in a flow transfer process by depending on fan manufacturing process flow; a complete set of related quality checking indicator system is established according to actual working conditions of all departments in a fan manufacturing quality monitoring process; a flow calculation architecture is designed according to characteristics of the manufacturing process through the system; and query optimization is performed by using a database caching technology, so that the system query speed and the system response speed are increased.