Fabricated concrete building design method based on BIM

The invention discloses a BIM (Building Information Modeling)-based fabricated concrete building design method. The method comprises the following steps: step 1, obtaining each module design of a building scheme; secondly, according to the design requirement of each module, the assembly scheme of each module is obtained on the basis of the size of a standard component in an industrial standard component library, and each module comprises a total laminated slab module, a total prefabricated inner and outer wall module and an inner partition wall module; thirdly, assembling scheme screening is conducted, and the optimal assembling scheme of each module is obtained through the number of types of used standard parts and the difference value between the sizes of the standard parts; and 4, assembling the modules through the optimal assembly scheme of the modules. Standardized design of fabricated building engineering is achieved, the standardization rate and the reuse rate of components and parts are improved, and