The phosphatized biota of Ediacaran(Sinian) Doushantuo stage from Wengan, Guizhou, which constitute an exceptionally wellpreserved 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 Wengan, 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 Wengan, 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 transmittedlight microscopy and the previous achievements in the study of the Wengan biota, the research evolvement and perspective of Wengan biota are introduced detailedly in this paper.