Abstract: In order to understand a high varied seam thickness, medium and small fault development, unclear goaf location of the small mine operation and other C onditions in Yima Mining Area, a channel wave seismic transmission method and a reflection method were applied to a study the channel wave response characteristics of the seismic transmission method under the high varied seam thickness, medium and small fault development, goaf distributions in previous small mines and other se am condition. The test results showed that the isoline of channel wave speed of 1 900 m/ s and 1 300 m/ s could be as the isoline of 3 and 5 m seam thickness and th e mining operations showed that the seam thickness and the channel wave exploration prediction were the same basically. The high reflection seismic phase in the CT stack section drawing of the channel wave seismic could be applied to predict and determine a fault location and the verification showed that in the mining operation, th e location exposed a normal fault with a expended length about 108 m. The channel wave exploration technology was applied to Yima Mining Area with a good effect an d could accurately predict the sea thickness variation of the coal mining face, the medium and small fault development and other geological conditions.