The Japanese manufacturers today are operating for global production strategy. To overcome this, the authors believed it is crucial to improve the intelligence skill level of the production operators who are the foundation of manufacturing. The authors recognized the requirements for 'creating a new production system: "Advanced TPS" that centers around people. As a solution, the authors suggested "HID" (Human Intelligence Diagnosis Method) and assessed its effectiveness at Toyota. More specifically, the authors developed the shortened education system by visualizing skill and implemented the skill training processes for the assembly line operators in order to become more intelligent.