Abstract: For prefabricated buildings, in the case of correct design, the most relevant factor and link of component quality is component prefabrication. For different regions, due to the differences of their specifications and standards and other elements, all regions need to form regulations suitable for the production of prefabricated building components in their own region according to their actual situation. In this paper, the main key technologies of precast concrete components will be studied and analyzed. Starting from the conditions of industrialized production and component production process, the main key technologies will be systematically and scientifically studied. The relevant research can provide useful experience and reference for the design and application of prefabricated buildings.