Abstract: In order to investigate the influence of both end initiation explosive on the shock wave power distribution in the near-ground field, experiment and simulation analysis were carried out. The results show that in both end initiation, the initial shock wave is coupled to the convergent center of detonator and boosted up, and then propagates horizontally in the circumferential direction from the central converging position in the air, significantly enhancing the propagation distance and overpressure power of shock wave in the near-ground field. Compared with the explosive detonation initiated at one end, in the scaled distance of 1.5 m·kg^−1/3 to 4.5 m·kg^−1/3, the power of the near-ground field shock wave initiated at both ends is significantly increased. The shock wave overpressure in the scaled distance range is increased by an average of 43%, and the increase is most obvious in the scaled distance from 2.5 m·kg^−1/3 to 3 m·kg^−1/3.