The surface of the Ulan Dele molybdenum ore district is heavily covered, and the prospecting criteria are inconspicuous. The integrated geophysical and geochemical methods have hence played a vital role in the discovery and delineation of the molybdenum deposit. The summarization of the geophysical and geochemical prospecting criteria for this deposit is very important in search for the same kind of ore deposits in other places of the ore-forming prospect area.