The invention relates to a lockset. The lockset comprises a lock body and a key for unlocking. The lock body comprises a lock seat provided with a lock hole and a lock ring mounted on the lock seat. The upper part of the lock seat is provided with a lock lug. A first mounting hole is formed in the lock lug. A second mounting hole is formed in the lower part of the lock seat. The lock ring is in aU shape. The lock ring is transversely inserted into the mounting holes in a penetrating mode. The bottom of the lock ring is in an umbrella shape. The two sides of the bottom of the lock ring are provided with elastic blocks which can be drawn to the middle. A reaming hole is formed in the second mounting hole. The elastic blocks are stretched in the second mounting hole and then clamped into thereaming hole. The lock hole extends to the reaming hole. The inner end of the second mounting hole is provided with an elastic part. The lockset is novel, ingenious and reasonable in structural design, locking is automatically achieved by pressing the lock ring, unlocking is achieved by using the fork-shaped key, using is convenient, the anti-theft performance is improved, and the lockset is worth of using and wide promoting.