The invention relates to a cigarette blast bead and a preparation method thereof. The preparation method comprises the steps of mixing and hot-melting the gel shell materials of, by weight part, 10 parts of water, 1-2 parts of gelatin, 1-2 parts of Arabic gum, 0.2-1 parts of modified starch, 0.5-2 parts of chitosan and 0.1-0.5 part of sodium alginate, and keeping mixing during the melting process to obtain shell gel solution; mixing, by weight part, 1-2 parts of essence and 5-10 parts of light liquid paraffin to obtain core gel solution; in a concentric dropping device, feeding the core gel solution from the inner layer and the shell gel solution from the outer layer to form concentric fluid column flowing inside coolant so that drops can shrink into beads under the action of surface tension to obtain primary wet beads; performing calcification, dyeing, oil absorption and drying on the primary wet beads to obtain the cigarette blast bead. The drop shaping manner solves the problems of shell thickness non-uniformity and lack of roundness during existing national blast bead production and enables the finished cigarette blast bead to be attractive in appearance and uniform in shell thickness, and when pinched up, being uniform in stress and good in hand feeling.