The utility model discloses a device for one step of formula tobacco is pinched and presses down bud agent ration spraying, including cuting part, quantitative spraying part, drive disk assembly and handle, it comprises the scissors that the blade is " V " shape to cut the part, said quantitative spraying parts include quantitative liquid chamber, sealed pad, disk seat, miniature relief pressure valve, infusion pipeline and spacing sealed lid, and the spacing sealed lid of volume accessible of quantitative liquid chamber is adjusted, and quantitative liquid chamber one end is connected with external stock solution device, and the other end feeds through with the scissors head, transmission system includes steel sheet spring, coil spring, hinge, slide bar and bracing piece, said handle is the pipe, and one end is articulated with the shearing part, and the other end passes through the spacing sealed lid of threaded connection. The utility model discloses simple structure, handheld operation can realize the tobacco and pinch and press down going on in step of bud agent ration spraying, can conveniently collect the incomplete body of cuing off of cigarette trunk, not only reduce the cost of labor of tobacco leaf production, still reduce the cigarette trunk and feel sick probability.