Based on the theories of high resolution sequence stratigraphy and integrated with seismic, geophysical log- ging, well logging and testing data, the stratigraphic sequence of target formation Qingl member is analyzed particularly that is contributed to the isochronous strata correlation in multiple datum cycles and consequently stratigraphic framework of Qingl member is built in Daqingzi jing area. With a great amount of core analysis and exact identification of microfacies signs, the microfacies types of delta front subfacies are identified and the characteristics of microfacies are described delicate- ly that makes the distribution of sand bodies clear, all of which provide strong foundation for the continuous and efficient de- velopment in the area.