Abstract: Aiming at the status quo of drilling and blasting method in rock roadway construction of Juji Coal Mine with many holes, multiple charges, poor smooth blasting effect and low working efficiency, this paper analyzes the existing problems and causes in the construction of Juji Coal Mine with drilling and blasting method. The technology of linear energy accumulation smooth blasting is proposed to reduce the number of holes and charge amount, improve the effect of smooth blasting, and the principle of realizing linear energy accumulation smooth blasting is analyzed. At the same time, the charge method, blasting hole arrangement, charge structure and charge amount of binding energy tube of linear energy accumulation smooth blasting are determined. Field test shows that linear energy accumulation smooth blasting technology has fewer holes, less charge, good smooth blasting effect, short distance of gangue throwing after blasting, low damage to equipment, low cost and high efficiency, and good blasting effect.