The utility model relates to cigarette outer sleeve technology which comprises a casing and is characterized in that the lower side of the casing is opened, and the taking out part for freely taking out a cigarette is arranged above the casing. One side of the casing is provided with a lighter inserting slot for inserting a lighter. The side surface of the lighter inserting slot is provided with a flameout slot. The upper part of the flameout slot is an opening surface, and the lower part of the flameout slot is a seal surface. One side of the taking out part arranged above the casing is provided with a taking outlet which is used for taking out a switch. One side of the taking outlet is connected by a hinge, forming a rotatable cover. Both side surfaces of the taking outlet are respectively provided with a connecting slot above which a connecting bulge opening is arranged. The problem of breakage due to bad custody can be prevented through the integral custody of a cigarette box. In addition, a lighter for lighting the cigarette can be simultaneously carried and the flame of the cigarette can be easily extinguished.