Stromatolite rhodochrosite is typical one of microbialites， which isconsideredas the evidence of biomineralization of manganese， but it is rarely reported around the world. Fortunately， manganese stromatolites develop well in the manganese deposit of the Sinian Doushantuo Formation in Chengkou area， northern margin of Yangtze block. These microbialites have been studied in a relatively low degree in this study area， and the growth mode and whether they belong to stromatolites or Epiphytonare still controversial. Based on core observation and microscopic thin section observation， the macros and microscopic characteristics of manganese stromatolites were described in detail. According to the scale and morphology， the manganese stromatolites can be divided into six types， including microbranched， microdigitate， minidigitate， stratiform， columnar， and stratiform - columnar stromatolites. The results showed that the diameter of the columnar manganese stromatolites are generally less than 1 cm with the characteristics of synchronic growth， which have the same features with Pseudogymnosolenaceae. The banded laminae （not Epiphyton） composed of dendrites and micro stromatolites is a common feature of mini and macro stromatolites. The stromatolites grew in the reef shoal and lagoon behind the shoal at the edge of a carbonate platform， coexisting with oolites and oncolites. The vertical evolution of stromatolites in this study area is dominant from minidigitate to stratiform， indicating that the water body gradually became shallower in the late Doushantuo period. The microbialite microstructures of manganese stromatolites aremainly clotted，in addition， they have tubular， spherical， fibrous forms which are related to microorganisms. Manganese stromatolites recorded the exquisite original sedimentary structures， suggesting that microorganisms are involved in the mineralization of manganese.