Sushi has been popular in China more than 1,800 years ago (that is, the Later Han Dynasty). By 700 AD, sushi began to be introduced to Japan. At that time, some business travelers used vinegar to pickle rice balls, add seafood or meat, and press them into small pieces as food along the way. Later, it was widely spread in Japan. The ingredients at that time were even used in various kinds of meat, and they were called " "Edo Sansushi", also known as "Nigiri Sushi", is the most popular sushi today.

In modern Japanese sushi, in addition to "nigiri sushi", there are also two types of "roll sushi" and "box sushi". "Maki Nushi" is made of rice, cucumber, tuna, eggs, pickled radish and other ingredients wrapped in seaweed. "Juan Sushi" is divided into Taijuan and Xiaojuan. As the name suggests, they are divided into big and small.

For "box sushi", you first put the rice into a wooden box, spread it with various ingredients, cover it and press it tightly, then take the sushi out of the wooden box and cut it into pieces, shaped like a box. Hence the name. "Handroll" is actually a type of "maki". It is said that in the 18th century, those Japanese gamblers hung out in the casino (Tekkaba) all day long. When they were gambling and were afraid of starving to death, they took tuna (tuna) meat. Add it to rice and roll it up with seaweed. You can eat big mouthfuls without the rice grains sticking to the cards and fingers, killing two birds with one stone, so it is very popular among gamblers. This kind of food originated from casinos, so it was called tekkamabi, and gradually evolved into today's hand rolls.