Abstract: Bubble jet near circular hole was simulated based on Autodyn, bubble motion was divided into two types, the motion of bubbles broken by hole jet and the motion of bubbles broken by wall jet, the influence of hole radius, detonation distance and loading capacity on bubble characteristics was analyzed. The analysis of the parameters-jet velocity, pressure, pulsation period and center displacement of bubbles-show that the decrease of hole radius is of great benefit to the jet formation in the opposite direction of the wall. In addition, the comparison results show that under similar conditions the peak pressure, velocity and pulsation period of the rigid wall with holes are lower than those of the rigid wall without holes.