The invention relates to a database storage format of BIM model data. The database storage format comprises a database, a component data table, a material data table and a shared Mesh data table. Thedatabase refers to that one model corresponds to one database, and the database comprises three data tables which are respectively named as components, materials and shared Mesh. The data format is public and easy to understand; a user does not need to read a large number of SDKs or protocol standards and can quickly manage data through the database; the same Mesh data are applied in a sharing mode and stored in a binary mode, and space is saved; due to the complete attributes of the contained Revit, materials are simplified, material data are standardized, redundant invalid content is reduced, meanwhile, it is guaranteed that data is used easily and effectively, and efficiency is improved; most of database table contents are stored in a Json format, so that a user can conveniently and quickly convert the database table contents.