As the post-war baby boom population begins to enter the ebb and flow (retirement stage), and as the fertility rates of 'developed' and 'developing' countries decline rapidly, their demographic dividend advantage will gradually decline and disappear. Such a phenomenon will bring a series of butterfly effects and impacts, such as: the beginning of the shortage of workers in the electronic production line, the automobile industry is difficult to find ......... and so on, all the industries have to face the problem of scrambling for workers immediately. Under these problems, “Robotic Application”, “the Factory realization with lights off”, “Intelligent factory”, etc., are all solutions to the road. And there is a possibility of replacing the traditional manpower completely.