According to the information of drilling core,field outcrop, logging curves,lithologic combination etc, under the guidance of the high resolution sequence stratigraphy theory system, on the basis of research ideas which suitable for continental basin sequence characteristics , the paper studied the sequence stratigraphy of Yanchang Formation in Zhidan area of the Shanbei slope in Ordos Basin. The paper analysed the lithologic characters of of Yanchang Formation in Zhidan area with different facies and circles, summarized the type of high resolution sequence stratigraphy interface and the recognition features in Zhidan area, divided the long-term stratigraphic base-level circles of Yanchang Formation and analyzed the characteristics of each base level cycle. Finally, on that basis, the paper put forward the high resolution sequence stratigraphic model of Yanchang Formation in Zhidan area during the time between Chang10 and Chang4+5. The paper concluded that Yanchang Formation can be divided into four long-term base-level cycles from the bottom to the top. And LSC1 is correspond with Chang10 oil layer and Chang9 oil layer, LSC2 is correspond with Chang8 oil layer and Chang7 oil layer, LSC3 is correspond with Chang6 oil layer and Chang4+5 oil layer, LSC4 is correspond with Chang3 oil layer ,Chang2 oil layer and Chang1 oil layer. With a good source-reservoir-caprock association , located in a favorable direction of oil and gas accumulation, LSC3 was the main oil producing interval of Zhidan area.