The invention belongs to the technical field of cigarette filter rod production, and in particular relates to a patent application for a kumquat-flavored essence for popping pearls in cigarettes and its application in cigarettes. The kumquat-flavored essence is composed of kumquat extract, isobutanol, vanillin, ethyl laurate, lemon oil, sweet orange oil and caprylic acid glyceride. The flavor can be used to prepare kumquat-flavored cigarette popping beads, which can be added to filter sticks to prepare cigarette popping beads for use in cigarettes. This application provides a kumquat-flavored essence specifically used for cigarette popping beads and a relatively perfect combination of popping beads production technology, which can prepare and obtain cigarette popping beads products with stable molding quality and uniformity, and put the popping beads into cigarette filters After that, it can better weaken the irritation of cigarettes, improve and enrich the aroma of cigarettes, and significantly enhance the richness of aroma, sensory quality and fun of smoking cigarettes, so it has a good influence on the design, development, production and sales of pop-ball cigarettes Application value and promotion application significance.