Based on submarine geological sampling in CC area of East Pacific and using such geophysical methods as the experimental analysis of photographs and the multifrequency detection, this paper deals with main types, abundance and coverage, taste, chemical composition and distribution of nodules in CC area. Based on studying such factors as sedimentation, biological function, submarine volcanoes, chemical composition and Antarctic waters, the authors revealed the material source of the nodules. According to an integrated analysis of the geological background and the landform, this paper further discusses the formation environment of the nodules. On such a basis, a metallogenic model has been established.