An aseptic medical instrument packaging has supporting peelable flaps by adding a material playing a supporting role which is harder than the rest of an extending part outside a sealing edge of a peeling side of the packaging, or adopting a material which is harder than the rest of an extending part outside a sealing edge of the peeling side of the packaging. A groove is carved in a junction between an outer edge of a sealing edge of a peeling side of the packaging. The material playing the supporting role comprises hard plastic, metal and paper. A soft cover of the packaging is prevented from being curled inwardly in the process of peeling open the packaging; and when one or two peeling sides exist, the degree of differentiation the peeling side will be increased, such that medical staff can conveniently find the peeling side.
