A raw material crusher for firecracker preparation comprises a barrel body, a barrel cover, a firecracker raw material inlet, a fixing pressing buckle, a rotating shaft, a first filtering net, a second filtering net, a third filtering net, a discharging chamber, a discharging sliding plate, a wedge-shaped block, a supporting shaft, a material accumulating barrel, a discharging pipe inserting port,a discharging pipe, an antiskid rubber sleeve, a handle, blades, a first cutting set, a second cutting set, a third cutting set, a motor, universal wheels and a fixing screw, wherein the barrel coveris arranged at the upper end of the barrel body; the handle is arranged at the upper end of the barrel cover; the antiskid rubber sleeve is arranged on the outer surface of the handle; the firecracker raw material inlet is formed in the lower end; the fixing pressing buckle is arranged at the left end of the barrel cover; the rotating shaft is arranged in the barrel body; the first cutting set isarranged at the topmost end of the rotating shaft; the blades are arranged at the left end of the first cutting set; and the second cutting assembly is arranged at the lower end of the first cuttingset. With the adoption of the raw material crusher for the firecracker preparation, raw materials can be completely crushed.