It is an object of the invention to improve the rotary-type pickling liquid injector so as to inject the pickling liquid into the meat ingredient correctly. A pickling liquid spout roller 1 is combined with an opposed roller 2. A convey mechanism conveys a meat ingredient between the spout and opposed rollers 1 and 2. The meat ingredient is nippedbetween the spout and opposed rollers 1 and 2, the rotary body 3 is rotated around the fixed body 4, and the opposed roller 2 is rotated around an axis thereof. The pickling liquid is injected into the meat ingredient.
