Abstract: Maoling gold deposit,located in the southwest of Liaodong Peninsula, discovered in 1985, is a giant veinlet-disseminated ore with low grade. The ore bodies are auriferous quartz veinlets and-arsenopyritized-pyritized sericite phyllite or schist. Au grade ranges from 3 to 5g/t. The country rock is the second member of Gaixian formation. Magmatic activities were common in the area.