Abstract: The present disclosure discloses a charging control method and device and an charging system for an electric vehicle. A method applied to a gun-shaped charging coupler comprises: detecting a press state of a latch button of the gun-shaped charging coupler; and sending a control signal to a charging pile connected with the gun-shaped charging coupler according to a detection result, the control signal being used for allowing the charging pile to obtain a charging control strategy, and controlling the charging pile to execute an operation corresponding to the charging control strategy. In such a way, when an electric vehicle is charged, the safety in the charging process can be improved with prolonging of the service lives of the gun-shaped charging coupler and a charging outlet and protection on the safety of people.