The invention relates to a two-stage parameterization establishing method of an assembly type concrete structure BIM. According to the method, by pre-establishing a first-stage no-rebar-contained parameterization assembly type concrete structure component connection joint model library, a second-stage rebar-contained assembly type concrete structure component connection joint model library and a parameterization component reinforcing bar library and applying the libraries in a classified mode at different stages of the design process, the aim of rapidly establishing and changing the model is achieved. The method is closely combined with the deep design, production and installation process, by the mode of classified pre-establishment of a joint connection structure of a complicated assembly type concrete structure, a complicated information model is established through the parameterization joint model library and the parameterization component reinforcing bar library, the requirements of stress and construction installation of joints and components are automatically met, and the method is simple, rapid and not prone to mistakes compared with a traditional modeling mode. The method is suitable for rapidly establishing a prefabricated concrete structure overall or partial model.