Abstract:The phosphatized biota of Ediacaran(Sinian) Doushantuo stage from Wengan, Guizhou, which constitute an exceptionally wellpreserved phosphatized Lagerstten of late Precambrian, consists of cyanobacteria, multicellular algae, acritarchs, rest eggs and embryos, questionable sponges, tubular animal and small bilaterian fossils. The phosphorites from Doushantuo Formation at Wengan, which contain important fossils of life evolution from simple to complex during late Precambrian and represent life scenery of early Ediacaran biota, provide an important taphonomic window for us to understand the biosphere of late Precambrian. Recently, a great lot of new data of the questionable metazoan body fossils(including all types or similar types of reported metazoan fossils) were found from Doushantuo phosphorites at Wengan, Guizhou. Conjunction with having been seen in SEM, furthermore, we imbedded a number of spheroidal and tubular fossils in epoxy resin and then thin sectioned them in controlled orientation. Based on the results of SEM and transmittedlight microscopy and the previous achievements in the study of the Wengan biota, the research evolvement and perspective of Wengan biota are introduced detailedly in this paper.