The sedimentary microfacies and sand body distribution of the upper Es4 submember in Qingdong5 Block is not clear，which has restricted the fine prediction of the reservoir and the development of the production plan. Based on the analysis of lithology，electrical characteristics and paleontological characteristics，the upper Es4 submember in Qingdong5 Block were divided into three sand groups. By using drilling，logging，seismic data and test data and integrating geologic facies，logging facies and seismic facies，the results show that the upper Es4 submember in Qingdong5 Block is fan delta deposition with well-developed fan delta front subfacies and fan prodelta subfacies and poorly-developed fan delta plain. The main reservoirs in the study area are underwater distributary channel，estuarine sand bar and front sheet sand developed in the fan delta front，clastics beach and bar and carbonate beach bar developed in the front delta，among which the midstream and downstream of the main water diversion channel，mouth sand bar and offshore beach sands are favorable reservoirs.The development of sandbodies in the upper Es4 submember of Qingdong5 Block are controlled by contemporaneous faults and sedimentary microfacies.