Abstract: There are lots of kinds of seismic waves and noises in the seismic while drilling advanced detection data, and the reflection signals are difficult to be recognized because of its weak energy.In order to reduce the influence of noises, it needs to simulate the seismic while drilling advanced detection by the finite difference method, and analyses the wave field features, finally uses the cross-correlation technology to process the simulation data.The results show that the composition of seismic while drilling advanced detection records are complex, and the reflection signals are concealed by other waves.The cross-correlation technology can enhance reflection signals, and compress the continuity signals; the singular value decomposition(SVD) technology can separate the seismic wave field, improving the detection result as same as the records of wavelet source seismic.