The utility model discloses an antidrip device in enzyme preparation spraying, include: the casing, it has the piston chamber and spouts the chamber, spout the chamber by upward down have the column section, as the first binding off taper section of contraction section, changeover portion and as the second binding off taper section of spout, the piston intracavity sets up the piston, sets up the sealing washer on the piston, piston one end sets up the connecting rod, the connecting rod extends to and spouts the chamber to with be the semicircular end cap and be connected, the end cap forms opening/closing structure with the entrance cooperation of changeover portion, thrust unit, it sets up at the casing upside, through piston rod and hinge joint, thrust unit's upside device control ware, liquid sensor and thrust unit all connect in the controller, the end cap bottom sets up liquid suction port, and liquid suction port connects in the fan entry, and the fan setting deviates from the piston rod side at the piston, and the fan export connects the exit on the casing through first hose, and the fan connects in the controller. This antidrip device will assemble outside the shower nozzle is taken out through the fan to the hydrops of end cap bottom, effectively prevent the water clock.