A laundry treating apparatus having a tub, a drum rotatably disposed inside the tub and configured to store laundry therein, and a connector connecting the drum to a rotary shaft of a motor for transferring a rotation power to the drum. The connector includes a first body having a first body hub and a first body arm, a second body having a second body hub and a second body arm extending along the first body arm, connecting portions spaced apart from each other and connecting the first body and the second body in a manner that the first body is spaced apart from the second body, and a rib disposed between a pair of the connecting portions. The rib protrudes from one of the first body arm and the second body arm and is spaced apart from the other of the first body arm and the second body arm.