In that the traditional design methods for prefabricated buildings fail to meet the modularization and standardization of modern construction, problems arise including the low-efficiency of prefabricated building designing, disconnection between design and construction, and etc. For solving the problems, the PKPM-PC, a BIM-based analyzing and designing software for prefabricated buildings is developed, which provides calculation tools for prefabricated concrete components during the demoulding, transporting and hoistiong process, and implements functions including BIM modeling, structural analysis, 3D splitting and collision, collision detection, BIM-data directly used by component processing equipment, and etc. The PKPM-PC provides an easy-operated BIM design method for numerous design units, which improves design efficiency, reduces design errors, and promotes the process of housing industrialization.