1, the types of sushi are divided into roll sushi, too roll, thin roll, hand roll, inner roll, warship roll, bet sushi, hold sushi, rice lotus sushi, bulk sushi, cup sushi, special pizza sushi, and fancy sushi. Often, the names of sushi are classified according to their practices or appearance characteristics.

2. It is often said in Japan that "where there is fish, there is sushi". This kind of food is said to come from the subtropical coastal and island areas. People there found that if cooked rice is put in a clean fish chamber and buried in an altar, it can be preserved for a long time, and the food will produce a slightly sour flavor due to fermentation, which is the prototype of sushi (namely, sushi).