The metallogenic series theory is an important thought guiding the studies of metallogenic regularities in China. In accordance with the forming time, the metallogenic series related to geological formation can be divided into syngenetic metallogenie series, pene - contemporaneous metallogenic series, epigenetie metallogenic’ series and superfieial weathering metallogenie series. Several metallogenic series related to the same geological formation comprise a metallogenic series family. When the theory is applied to regional metallugenic regularity studies, metallogenic belts should be defined firist, and then the metallogenic series family related to the main geological formations in every metallogenic belt can be summarized.