The invention relates to the technical field of CIM application platforms, in particular to a CIM-based total-element mass data lightweight and topology analysis application platform, which comprisesan original model data file, an SDK development program tool, a CIM vector space database and a hybrid visualization platform, wherein the SDK development program tool is used for identifying CIM original data provided by an original model data file and obtaining model data, and the CIM vector space database stores vector space data of the model data; the hybrid visualization platform realizes rapid retrieval and topology analysis of vector space data through a CIM vector space database; and the model data can be subjected to total-element lightweight processing, so that the effects of quick loading and efficient rendering are achieved. The platform provides functions of efficient indexing, topological analysis, total-element lightweight loading and efficient rendering of model data, and is convenient to use.