Abstract: The location forecasting of concealed orebody is the frontier and stress of research in metallogeny and metallogenic prognosis This paper discusses on the methodological foundation and methodology for the location forecasting of concealed orebody The author points out:(1)big-ideas,small-scale,and high-precison are the methodological foundation for the location forecasting of concealed oredody;(2)metallogenic analysis is the methodology for the location forecasting of concealed orebody;(3)structural analysis is the best way for the location forecasting of concealed orebody; and (4)the combinative forecasting method is a new tool for the location forecasting of concealed orebody.