Abstract: The Late Paleozoic strata are extensively exposed in Baoshan massif of western Yunnan. Research work has been relatively in detail and, as a result, many achievements have been obtained. However, the Devonian-Carboniferous boundary was previously considered to be of pseudoconformity contact. In recent years, through 1∶50000 regional geological survey in Shidian area, we collected a large number of Famennian-Tournaisian conodonts in upper Heyuanzhai Formation which was previously assigned to Middle-Late Devonian and confirmed that the sequence of sedimentary facies between Heyuanzhai Formation and overlying Xiangshan Formation is a gradual transition relationship. Therefore, the authors propose for the first time that the Devonian-Carboniferous contact relationship is conformable contact, and this result will provide the latest information for the tectonic evolution of Baoshan massif.