Abstract: Reflected channel wave technology has a good application prospects in detecting seam structure in working face of underground mine.Envelope-stack imaging method can be used for slot wave data imaging due to it’s frequency-dispersion characteristic.To build fault model and to use the 3D channel wave numerical simulation for inversion in the article.Based on the simulated data,envelope-stack imaging method is applied in the data.To prove the availability of envelope-stack technology’s application in reflected channel wave data imaging by comparing imaging result with practical model.To conclude, data,envelope-stack imaging method is effective means of reflected slot wave imaging by practical application data and drilling validation.