The present invention discloses a preparation method of edible purple sweet potato products. The preparation method comprises the following steps: the purple sweet potatoes are peeled, the peeled purple sweet potatoes are washed and cleaned, the cleaned purple sweet potatoes are
cut into uniform thin slices, a mixture of water and
sodium bicarbonate is added to conduct soaking, the soaked purple sweet potato slices are filtered, the filtered purple sweet potato slices are washed and cleaned, water is added to conduct boiling, the boiled purple sweet potato slices are taken out, and the taken out purple sweet potato slices are sent into a baking
machine to conduct baking to prepare first prepared materials; cooked eggs with pork, water, edible salt, chilies,
osmanthus fragrans flowers and mint are mixed, the mixture is boiled for 1-3 h, the heating is stopped, the boiled mixture is soaked for 2-5 days, the boiling continues for 15-35 min, the boiled mixture is filtered,
salvia japonica, beta-
cyclodextrin, edible
agar and
royal jelly are added, the mixture is mixed evenly, the mixture is sent into a mincer to be minced, the minced mixture is dried, and the dried mixture is crushed into
fine powder to obtain second prepared materials; and the first prepared materials, second prepared materials,
monosodium glutamate, red beans and
osmanthus fragrans flowers are sent into a paste making
machine to making paste, the paste is sent into a shaping
machine to be shaped, the shaped mixture is sent into the baking machine to be baked, the baked mixture is vacuum packaged, and the packaged mixture is sterilized using a
microwave light source to obtain the edible purple sweet potato products.