Abstract: The present disclosure provides a spice injection-type meat tenderizer including a spice storage chamber, a tenderizer injection assembly, a sleeve assembly, and a piston assembly. The tenderizer injection assembly comprises a connecting ring, a movable disc, and a baffle disc. A reset spring is disposed inside the sleeve assembly and around an outside of the spice storage chamber. Under actions of an external force and the reset spring, the sleeve assembly, the movable disc, and the spice storage chamber reciprocate between the connecting ring and the baffle disc. The piston assembly includes a piston, a baffle rod, and a stroke pipe. The stroke pipe is disposed in the spice storage chamber, and a liquid flowing outlet is opened at a top of the stroke pipe. The piston is slidably connected to an inner wall of the stroke pipe. The baffle rod runs through the movable disc and is inserted into the piston.