Till now, time-lapse seismic monitoring of continental thin-interbedding reservoir has not made a remarkable breakthrough, and hence the strengthening of the study and application of the time-lapse seismic method as well as the cross-equalization processing technique is of great significance. As a most effective method for improving the repeatability of time-lapse seismic data, the cross-equalization processing technique has been widely used with excellent results achieved. Through the cross-equalization processing of time-lapse seismic monitoring data obtained in the development of continental heavy oil thin-interbedding reservoir with the use of thermal recovery, it is shown that the cross-equalization processing is helpful to recognizing time-lapse seismic anomaly and determining the position of thermal front. Nevertheless, when the repeatability of original seismic data is very bad, such a processing can only improve the repeatability of time-lapse seismic data, but with no good seismic anomaly detected. The key to the successful performance of time-lapse seismic monitoring for the continental thin-interbedding reservoir is the enhancement of the repeatability of seismic wavelets and seismic data. The amplitude attribute seems to be one of the major criteria for the thinner reservoir.