The invention discloses a preparation method of sour soup of the Yao people. The preparation method of the sour soup of the Yao people comprises the following operation steps: 1), preparing materials, namely preparing the following materials: 100 parts of red chili peppers, 10-15 parts of
bulb of
allium paepalanthoides, 8-10 parts of fresh gingers, 10-15 parts of glutinous rice, an appropriate amount of sweet
wine distiller's
yeast, and an appropriate amount of edible salt; 2), soaking the glutinous rice for 4-6 hours,
steaming the soaked glutinous rice until the glutinous rice is fully cooked, pouring the steamed glutinous rice out, carrying out cooling until the temperature of the glutinous rice is 40-45 DEG C, sprinkling cold boiled water onto the cooled glutinous rice, adding the sweet
wine distiller's
yeast, carrying out uniform stirring, and carrying out sealed
fermentation on the mixture in a
jar for 36-48 hours so as to obtain sweet ferment rice; 3), sterilizing a
ceramic jar, thoroughly washing the red chili peppers, the
bulb of the
allium paepalanthoides and the fresh gingers, carrying out draining until the washed red chili peppers,
bulb of
allium paepalanthoides and fresh gingers are dry, chopping the drained red chili peppers,
cutting the drained fresh gingers into granules,
cutting the drained bulb of allium paepalanthoides into granules, carrying out pulping by using a stone mill into pulp, adding the edible salt and the sweet ferment rice, carrying out uniform stirring, containing the mixture in a
ceramic jar, sealing the
ceramic jar, and carrying out
fermentation in the shade for 15-20 days, so that the sour soup of the Yao people is prepared. The sour soup prepared by the preparation method disclosed by the invention is unique in
flavor, and capable of promoting
appetite and invigorating the
spleen; moreover, the sour soup is durable in
aftertaste, rich in
nutrition, pure in
sour taste, unique in
flavor, and capable of promoting
digestion and stimulating
appetite. The sour soup is a delicious food
seasoning which is suitable for both the old and the young.