Based on Sr and C isotopic sequence stratigraphy, this paper has made a comparison between the Pre Cambrian Sr and C isotopic data from the Jiao-Liao-Xu-Huai area and the variation curves of Sr and C isotopes available abroad. It is shown that the Precambrian strata in the Jiao-Liao-Xu-Huai area were accumulated in the same period. The Sr and C isotopic ratios show good correlation in this area. The accumulation of the strata occurred from 750 to 860 Ma, and continued to the Sinian. These strata are sediments accumulated after Qingbaikou period. It is also shown from the comparison that dating with Sr and C isotopes is an effective way to solve the problem of Precambrian stratigraphic correlation in the case of lack of fossils.