Rare earth deposits in Chishan and Longbaoshan area have similar geological mineralization background, rock-controlling characteristics and geological characteristics of deposits. Alkaline intrusive rock in early Yanshan period has close relation with rare earth deposit. Rare earth ore bodies mainly occurred in complex and country rocks in surrounding areas. As showed by the study on rare earth elements and isotope results, it is regarded that ore-bearing alkaline concentrated magma probably belongs to crust-mantle magma source mixed type, and alkaline magma and ore-forming materials may be derived from the same parts of the mantle, while crust materials were mixed and assimilated in the process of magma intrusion. Chishan rare earth deposit is a single light rare earth deposit. Rare earth bearing carbonate quartz barite veins are its main vein types. Rare earth bearing minerals are mainly composed of harmartite and parisite deposits, while carbonate calcium cerium deposit and diamond calcium strontium bastnasite deposit were first found in China. Longbaoshan rare earth deposit is a symbiotic deposit of rare earth ores and gold ores. Quartz veins and silicified breccia veins are its major vein types; rare-earth bearing minerals are mainly composed of harmartite deposit, harmartite lanthanum deposit and harmartite calcium deposit; gold minerals are native gold and silver gold. Its ore-forming period is later than the formation of igneous rocks and belongs to late Mesozoic Yanshan period; It is alkaline magmatic low-temperature hydrothermal rare earth deposit.