The invention provides an environment-friendly, easy-clean and low-cost acetic acid fermentation pool which belongs to the field of edible vinegar manufacturing. According to the existing acetic acid fermentation pool applied to an acetic acid fermentation process in an edible vinegar production flow, ceramic tiles are used to decorate the inner surface in construction, and thus numerous seams are formed; huge workload is produced for cleaning and cleaning is difficult; pollution is increased; bacteria may appear; the possibility of leakage is increased; the difficulty of repair is increased; and the service life is only 5 to 8 years. According to the invention, granite plates with polished surface are used to form the inner surface of the pool, wherein the length of each granite plate is at least 76 cm, and the width is at least 60cm. The acetic acid fermentation pool provided by the invention has the advantages that the length of a seam of the inner surface of the acetic acid fermentation pool is at least reduced by 63.2%; compared with ceramic tile seams, the granite plate seams are easier to clean; simply through regular cleaning, the seams are clean, and the possibility of pollution is reduced; the purchase cost is reduced by 60%; the labor cost of fixing is reduced; and the expected service life is above 20 years.