The invention provides a key buckle. When the key buckle is used, a user connects a hanging ring with keys. In the unlocking process, the user pulls one key, as a pull rope is connected with a spring rotating shaft together, the pull rope can stretch out naturally, the user can unlock a lock by getting the key close to the lock, after the lock is unlocked, the user just needs to loose the key, the spring rotating shaft will pull back the pulling rope and the hanging ring, and therefore the hanging ring is attached to a hanging buckle again. When carrying the key buckle, the user inserts the open end of the hanging buckle on a belt, the hanging ring is arranged to be provided with an opening with an elastic plug, the keys are convenient to assemble and replace, and particularly the trouble that many existing improved key handles are big, thick and wide and inconvenient to sleeve is saved; the key ring is coated with a fluorescent powder layer so that people can find the keys easily at night, and the effect is good.