Abstract: On the basis of integrated study of core description，well logging and sample analysis，the sedimentary facies and sequences of the Member 2 of the Shanxi Formation are analyzed thoroughly with the application of high-resolution sequence stratigraphy．The Member 2 of the Shanxi Formation is composed of a sedimentary system of marine braided river delta and can be divided into one long term，two middle terms, four short terms, nine super-short terms base-level cycle sequences, and two categories and five kinds of texture of base-level cycles. The stacking patterns and distribution and evolution of sandbodies at different orders of base-level cycles are studied in detail. The chronological stratigraphic units established on the basis of ascending and descending hemicycles of the medium term are used to trace and correlate the sandbodies in the Member 2 of the Shanxi Formation. It is indicated that the continuous stacking thick sandbodies in the delta channel developed at the ascending hemicycle and the fine-grained sediments deposited at the descending hemicycle which was the main development stage of regional restraining barrier and caprock. Based on above analysis and application of high-resolution sequence stratigraphy the isopach map of sandstone and ratio of sandstone to mudstone, the sedimentary microfacies map and 3-D simulation of sequence indicator of sandbodies distribution were plotted in a chronological stratigraphic framework which provides reliable evidence for the prediction and evaluation of favorable sandbodies of the Member 2 of the Shanxi Formation in the Changbei Gas Field.