The invention discloses a carbon dioxide fracturing pipe explosion-release improving device and an explosion-release method, and belongs to the technical field of explosion. The device comprises a safety protection cover with the diameter larger than the diameter of an explosion release area, and an upper layer and a lower layer of a safety protection cover main body steel plate are wrapped with iron gauze; springs which are vertically upward and are equal in height are uniformly distributed and hung on the iron gauze on the upper layer of the steel plate, and wire gauze which is the same withthe safety protection cover in size is hung on the tops of the springs; a protection pipe which is hung on the lower portion of the steel plate through a hook and is vertically and downwards and reversely embedded in an explosion-release hole is hung on the iron gauze at the lower layer of the steel plate, a protection pipe main body is provided with an extending-out base, and the inner diameterof the protection pipe main body is slightly larger than the outer diameter of a carbon dioxide fracturing device; and a hook for hanging the iron gauze on the steel plate lower layer is arranged at the tail end, in the protection pipe, of the carbon dioxide fracturing device. According to the carbon dioxide fracturing pipe explosion-release improving device and the explosion-release method, a carbon dioxide fracturing pipe is vertically embedded in the explosion release area, safety protection performed before explosion release and rapid collection of repeatedly used parts obtained after explosion release are facilitated.