This paper takes channel blasting in Tuotang protective engineering in Xiajiang water junction as an example, hierarchical segmented shallow hole loose controlled blasting of the main part of channel combined with pre-splitting blasting technique in the slope was used in the project. According to the geological information and adjacent buildings condition, reasonable blasting parameters were selected and specific construction schemes were made. The results showed that by using the pre-mentioned process, the impact of blasting on surrounding environment was effectively reduced and the stability and integrity of the adjoining rock remained, ensuring the construction quality and project schedule, providing references for similar works.