To provide a quality improver for meat processed food with which food produced by processing meat as a raw material does not get hard even when cooked with heat, outflow of meat juice slightly causes to have excellent palate feeling, and also the yield of the food is improved: and to provide a method for improving quality of the meat processed food.

The quality improver for meat processed food contains at least one selected from mineral-preparation raw materials obtained by baking plants, as an active ingredient.