Provided are: a method for producing a protein material having a livestock meat-like texture, including performing an addition of an organic acid and a heating at the same time, with respect to a paste of fish meat or chicken meat； and a protein material of a fish meat or a chicken meat with a livestock meat-like texture, having a granular form having a hardness of from 8 to 30 N, a pH of from 5 to 7, a water content of from 70 to 85%, and a size of from 0.2 to 10 mm.
