The invention relates to an explosion-method quick hole-blocking device. The explosion-method quick hole-blocking device comprises a hole-blocking housing and hole-blocking explosive package, wherein the hole-blocking housing is in the shape of a barrel; the hole-blocking explosive package is positioned in the housing, positioned at the axis of the housing and positioned on the middle position of the housing; and a hole-blocking material is filled between the hole-blocking explosive package and the inner wall of the housing, so that the hole-blocking explosive package is conveniently positioned in the housing. The explosion-method quick hole-blocking device has the advantages of being simple and convenient to use, and good in sealing and blocking effect, can effectively reduce the sealing and blocking length, can improve blast hole utilization efficiency and can improve rock breaking effect, and is suitable for various blast hole blocking requirements.