The embodiment of the invention provides a model matching method and a model matching system for a real-time simulation model and relates to the technical field of power systems. The real-time simulation model can be quickly built, thereby improving the efficiency of a real-time simulation test of a power grid. The model matching method comprises the following steps of receiving simulation requirement description information, and generating a keyword suitable for model matching according to the simulation requirement description information; searching the real-time simulation model matched with the keyword from stored candidate real-time simulation models according to a stored matching rule and the keyword, and outputting a search result; exporting the real-time simulation model specified by a user from the search result. The model matching method and the model matching system provided by the invention are used for building the real-time simulation model in a simulation test.