Abstract: In order to solve the problems of low signal-to-noise ratio and low resolution of seismic raw data and low accuracy of seismic interpretation in Cuncaota Mine due to the complex ground seismic geological conditions, the great change of low-velocity layer and the serious absorption and attenuation of seismic waves by loess and gravel layers, the problems could be solved by rational arrangement of seismic observation system and fine processing of raw data, such as comprehensive application of channel amplitude compensation, refraction static correction, combined de-convolution, noise attenuation, pre-stack time migration, and so on. The quality of the data is greatly improved on the premise of ensuring the signal-to-noise ratio of the data, the drilling and underground mining show the accuracy of seismic interpretation on faults and scouring zone is more than 80%. The fine 3D seismic prospecting technology for this area is proposed on the basic of application.