The invention discloses a novel plate chain line. The novel plate chain line comprises a chain wheel, a plate chain, a cover plate and a supporting part, wherein the chain wheel is arranged below floor; the plate chain is formed by sequentially connecting chain links; the plate chain is wound on the chain wheel, and is divided into an upper plate chain positioned above the chain wheel and a lowerplate chain positioned below the chain wheel through the chain wheel; the cover plate is connected with the floor; the upper surface of the cover plate is flush to the floor; the end part of the coverplate is equipped with a pin roll hole; a pin roll is mounted in the cover plate through the pin roll hole; a cover plate sheet is arranged in the middle of the cover plate; and the supporting part is arranged below the upper plate chain to support the upper plate chain. The plate chain line disclosed by the invention provides a stable upper surface, is simple and compact in structure, is good insmoothness, and realizes barrier-free accessibility; and the middle end of the cover plate is manufactured into a lug boss, so that strength of the pin roll is not affected, the hollow-out degree ofthe pin roll and a scraper chain can be increased, and times of dismounting to clear are reduced.