Organic matter plays an important role in the transport, deposition and enrichment of metal elements. Organic hydrocarbon is the final pyrolysis product. It is found that organic hydrocarbon has a positive correlation with gold content of orebody in the Baguamiao gold deposit. The mineralizing and enrichment center of the gold deposit is also the concentration center of organic hydrocarbon. The characteristics of organic hydrocarbon can be used to search for concealed gold deposits.