The different winks of karate belt symbolize different grades: white belt symbolizes stepless, orange belt symbolizes 10-9, green belt symbolizes 8-7, yellow belt symbolizes 6-5, green belt symbolizes 4-3, tea belt symbolizes 2-1, and black belt symbolizes above primary level.

Karate absorbed the traditional cultural thoughts of China's ancient Confucianism and Zen Buddhism, such as faithfulness, honesty, benevolence and courage, and merged the spirit of Japanese Bushido, forming a unique and distinctive martial arts culture.

Extended data:

Karate originated in Ryukyu area, which is roughly equal to the distance between mainland Japan, China and Korean Peninsula. This place is destined to mediate between all parties. In ancient times, the capital of Ryukyu Kingdom was called Juri, and now Juri has become a part of Naha City.

The names of karate in history are combination, hand, Tang hand, empty hand and so on. Humans are aggressive, so some primitive fighting techniques were first developed in Ryukyu area, which is no different from other areas.

But after all, Ryukyu is an archipelago with a small population base, so I believe that the early fighting skills were also rough and primitive, and there was no formal title at first.

It is described in Biography of Liu Qiu in Sui Shu that the Ryukyu area in Taiwan Province Province was still in the tribal era during the Sui Dynasty, and the samurai was elected as the tribal leader, which shows that the martial arts in this area has been prevalent for a long time.

It is also mentioned in the History of the Yuan Dynasty that the sea here is dangerous, and it will kill you if you encounter a typhoon. Therefore, few people have set foot here since the Han and Tang Dynasties, let alone spread martial arts.

According to local historical research in Okinawa, there have been hundreds of tribes, large and small, on Okinawa since the 7th century. They built forts as administrative centers and fortresses and attacked each other. Due to the lack of iron, agricultural tools and wood are often used in combat, as well as unarmed combat.

The technique of using instruments evolved into Gu Wu Dao in Okinawa, and unarmed technique was the earliest origin of karate. These fighting skills were only accumulated and circulated within the family at the earliest, and gradually formed a certain style of play.

Baidu Encyclopedia-Karate Etiquette (Dojo Specification)