Abstract: The Nzega greenstone belt is an very important greenstone type gold mineralization belt in Tanzania.For sustainable weathered,the surface is heavy covered and with a low level of mineral survey and exploration,so there is a giant potential in prospecting concealed gold deposit.In the course of geological exploration work,based on the actual situation,comprehensive analysis and comparison some kinds of skill for prospecting concealed deposit,it shows that when combined with geology mapping,high-accuracy ground magnetic survey,soil geochemistry and electrical stimulation,combines with drill-mobile operation and sample,can target an anomaly related to mineral deposit successfully and high-efficiency,and find a gold deposit in the Nzega greenstone belt finally.Application of auto drill construction sampling and geochemical analysis to the prospecting work in the concealed area of the Nzega greenstone belt.The working method is simple and inexpensive,which can quickly delineate ore induced anomalies and achieve the purpose of rapid evaluation.It can improve the efficiency and success rate of prospecting and has economic significance if it is widely used in prospecting in concealed areas with similar conditions.