The invention provides a firework display base materials based on starch and the preparation method and relates to a preparation method of firework display base material and the base. The preparation method is that proper amount of water is poured after starch, grain powder or pulp are fragmented, part or all of release agent is added, then after being agitated uniformly, agitating while heating until the starch is totally gelatinized, slightly cooler, residual materials are poured in and mixed thoroughly into gray gunk. The gray gunk is filled into a die with a temperature of 150-280 DEG C, the die is closed to keep the heat until being dried, then a product is get after unloading from the die. The pulp is waste or new pulp or a market pulp board and the release agent is stearic acid, silicone oil or stearate. Based on the starch as the base material and supplemented by paper fiber, the invention has high strength and reduces possibilities of impacting the bottom when transmitting; a contour forging once-through shape craft is adopted which is very simple, the quality of the product is stable, and the individual difference is little without any deforming, moreover manpower is saved. By replacing the die, the invention can produce display shells, firework display tubes and various firework bases.