There are provided a method of generating a terrain model and a device using the same. The method of generating a terrain model includes dividing a primitive terrain model into a plurality of partial terrain sections based on a predetermined criterion, assigning the plurality of partial terrain sections to a multiprocessor, and generating a final terrain model by performing a terrain transformation simulation of the plurality of partial terrain sections through parallel processing based on the multiprocessor. Therefore, it is possible to rapidly generate a realistic terrain model.