Luocun molybdenum deposit of Luanchuan County is an important part of the eastern Qinling molybdenum metallogenic belt in western Henan, it is located on the Lushi-Luanchuan depression folds bundle, that is a part of the Huaxiong margin depression in the North China Platform. Through the study of the characteristics of the geology in mining area and deposit, the authors point out that the Luocun granite-porphyry bodies are composed of fine granite-porphyry centre, breccia middle zones and Granodiorite rock outer zones, and the Luocun molybdenum deposit occur in breccia middle zones.