Judo is divided into several stages according to the level of athletes. The color of the belt is usually used to distinguish the stages. The novice who has not entered the stage is a leucorrhea, the first to fifth stages are black belts, the sixth to eighth stages are red and white intervals, and the ninth to tenth stages are red belts. At present, only a few people in the world have reached the status of red belt, but in order to distinguish easily in large-scale sports meetings, it is often stipulated that one party wears a white belt and the other party wears a red belt.
Judo (じゅぅどぅ) is a fighting technique that focuses on throwing and ground skills. Japan is known as the "judo country". Judo is a unique subject in Japanese Wushu, which evolved from jujitsu. In Japanese, it means "soft way". Is the "gentle way". Judo originated in part from the hand-to-hand combat technique of ancient Japanese samurai: jujitsu. Judo wins the game by throwing its opponent to the ground. This is the only event in the Olympics that allows opponents to be subdued by choking or twisting their joints. Judo is a highly antagonistic competitive sport, which emphasizes the technical proficiency of players, rather than the comparison of strength.