Abstract: A lock cylinder with joggle joint structure comprising a plug and a casing. Key pins are disposed within the plug. Driver pins are disposed within the casing. Inner ends of the key pin and the driver pin engage with each other to form an integral locking member. A plurality of integral locking members are disposed in the lock cylinder. An outer end of the driver pin is disposed with a spring. The inner end of the key pin is disposed with a mortise, the inner end of the driver pin is disposed with a tenon, and so the key pin and the driver pin engage with each other in form of a joggle joint.