Abstract: By analyzing general methods used in compiling synthetic record, taking consideration of the seismic and geological data of the study area, a useful optimal method, which emphasized the wavelet extraction method and the deviation caused by wavelet phase, was presented to make synthetic seismic records. With the application of this method to Xinkai-Dongjiagang area, Liaohe Oilfield, where the quality of seismic data was relatively poor, making the accuracy of stratigraphic unit demarcation highly increase compared with general methods