Abstract: The Jiangnan Orogenic Belt is an important tungsten, tin, and rare metal metallogenic belt in the world. Skarn tungsten-tin deposits, veinlet-disseminated tungsten deposits, quartz-vein wolframite/scheelite deposits, tourmaline-quartz vein tin deposits, greisen tungsten-tin deposits, and granite-pegmatite niobium-tantalum deposits are developed in this belt. Four metallogenic epochs including Neoproterozoic, Caledonian, Indosinian, and Yanshanian have been identified. The ore-bearing granites can be divided into W-Mo, W, Sn, and Nb-Ta granites based on the metallogenic element assemblages, and their evolution degree and geochemical characteristics show significant differences. Nb-Ta mineralization occurs in the extremely differentiated albite granite. The ore-bearing granites with different ages and types are likely to have been derived from partial melting of sources. The ore-forming materials and fluids mainly originate from the granitic melts, where the magmatic fractionation facilitates the enrichment of ore elements in the melts. The Nb-Ta deposits are primarily of magmatic origin and subordinately overprinted by hydrothermal mineralization, while the W and Sn deposits are dominantly formed through fluid filling and metasomatism.