In the processing of seismic data, the technique of well-controled seismic data processing can be used. The steps include obtaining spherical spreading compensation factors and Q compensation factors from well data, scanning around the obtained Q values, and then making an analysis by matching the well data with the migration profiles that are processed by different Q values. Finally, an accurate Q value is obtained. The results of true amplitude recovery and Q compensation of the actual data show that this technique is effective.