A conveyor belt control system for a coke wharf, provided with a function for preventing overloading and uneven loading, is disclosed. The conveyor belt control system for a coke wharf, provided with a function for preventing overloading and uneven loading, according to the present invention comprises a conveyor belt having coke, which is discharged from a coke wharf and a sub-wharf, loaded thereon; a carrier roller supporting the bottom surface of the conveyor belt and moving the conveyor belt; a support unit combined with one end of a center shaft of the carrier roller to be able to rotate and moving up and down at predetermined heights depending on existence of a pressure effect and transmitting a weight signal of the coke; a switch unit installed and fixed with a predetermined space apart from the outside of the support unit and receiving the weight signal which is transmitted from the support unit while the support unit moves down; and a control unit determining whether the coke is overloaded or unevenly loaded after receiving the signal from the switch unit which lasts for a predetermined period of time, and transmitting a cutoff signal to a wharf gate.