A connector for connecting a cable and a circuit board is disclosed. The connector includes an upper cover plate, a lower plate body and an auxiliary member. Through the combination of the upper cover plate and the lower plate body, the cable can be held in an accommodation space therebetween. When an external force is applied to the upper cover plate, the upper cover plate will be unlocked to form an angle between the upper cover plate and the lower plate body, and then the holding member locking the cable is deformed to release the cable.