In the world, besides a number of high-grade or low-grade iron ore deposits in the Precambrian banded iron formation, there exist numerous associated deposits which contain large quantities of metallic and nonmetallic resources, particularly Au, Mn, Pb-Zn, Cu and Ni. These deposits are large to super-large in size, and some of them possess an important position in national economy of some countries. However, in China, only several small-medium sized Au deposits have been discovered, whereas large-sized Au deposits and other metallic ore deposits have not yet been found. Therefore, during the geological survey and integrated prospecting, researches on polymetallic deposits associated with the banded iron-formation must be strengthened. The geological characteristics and background of Precambrian greenstone belt and banded iron formation must be studied. Moreover, synthetic thought must be formed in looking for these mineral deposits which have favorable ore-prospecting potential. This paper deals with the research situation and basic geological characteristics of several typical ore deposits in China and abroad in the hope of providing some reference and expanding train of thought for China's prospecting work.