The invention discloses a lightweight BIM prefabricated part full life cycle comprehensive information management system. The system comprises a lightweight BIM management module, a lightweight BIM processing module, a lightweight BIM data management module, a lightweight BIM construction progress dynamic management module and a lightweight BIM monitoring measurement module. Based on the advantages of visualization, digitization, multi-dimension, coordination, whole-process simulation and the like of the BIM technology, geometric information, functional attributes and process information of engineering objects are completely expressed, reproduced, transmitted and shared, co-governance, co-management and coordination of all participants of a construction project on the same target object and a single engineering data source can be supported. A sharing platform is provided for design construction, resource allocation, construction simulation and monitoring measurement; according to the system, the running speed of a processing computer can be increased, memory consumption is reduced, the response speed is high, and the error and rework probability caused by participation of multiple units can be reduced.