In the study of metallogeny, there isn't a unified nomenclature or classification for the sediment-hosted base-metal deposits. Among these deposits, one type of deposits, which is hosted by sediments and controlled by structure and characterized by vein orebody that contains Pb-Zn-Cu-Ag polymetals, lacks systematic summary. However, this type of deposits is a product of orogeny, and its study can provide information concerning the process of mineral migration and precipitation. The authors collected many data of this deposit type, in order to find out its metallogenic characteristics, ore-controlling structures, ore-forming fluids and sources of ore-forming material. Researches show that deposits of this type are mainly located in orogenic belts, and the mineralization is mostly related to orogeny or orogenic belt. The metallogenic materials of these deposits were mainly derived from basement rocks, probably with the contribution of magma and mantle source. The ore-forming fluids were mainly originated from basin brine, magmatic fluid and metamorphic fluid, and were partly affected by the meteoric water. Deposits of this type have some similarities to MVT deposits, but there are still many apparent differences between them in metallogenic environment, ore-bearing rock, ore-controlling structure type, source of ore-forming fluid and ore-forming material.