Abstract: Subjected to the analyzer′ s experience and geological conditions at the coring location, the exploration results of the advanced horizontal drilling are often different to the actual conditions. In view of this, the industrial endoscope technology is applied to the advanced horizontal drilling for geological prediction in Fuxing tunnel on the newly-built Dali-Ruili railway. In combination with the application practice of industrial endoscope technology in the advanced geological prediction, this paper summarizes the technical requirements for the imaging operation in the advanced horizontal boreholes and proposes the corresponding quality control measures for the imaging operation, effectively improving the accuracy and timeliness of the advanced geological prediction, enhancing the guiding effect of the geological prediction on tunnel excavation construction.