Abstract: Advanced detection of seismic waves is more advanced geologic prediction technique at present,however,the accuracy is a controversial issue,the research results show that the accuracy of advanced detection of seismic waves depends on the speed selection,because the first time to adopt speed is built on three-dimensional seismic survey,speed selection has certain error,lead to inaccurate interpretation of the fault.Through the combination of scanning speed spectrum and migration velocity modeling,the second processing corrects the parameters of the speed according to the first processing,the results coincide with the actual results.Therefore,adopting the correction parameters of the speed becomes particularly important for improving the accuracy of seismic exploration according to the combination of scanning speed spectrum and migration velocity modeling.