A control system of an electric vehicle comprising: a power collector for obtaining power from an electric power line; a main motor for driving wheels; a power converter for receiving power supply from the electric power line via the power collector and controlling the operation of the main motor; an electric storage device for supplying DC power to the power converter; and a switching device for controlling a conduction current between a DC portion of the power converter and the electric storage device; characterized in that the system further comprises a position storage device storing a travel position information of a contact break section; and a switching signal output device (i) outputting a switching signal for stopping the switching operation of the switching device, if it is determined that the electric vehicle is not travelling in the contact break section, as a result of matching a current travel position information of the electric vehicle and the travel position information of the contact break section stored in the position storage device, when the switching device is performing switching operation, and (ii) outputting a switching signal for activating the switching operation of the switching device, if it is determined that the electric vehicle is travelling in the contact break section, as a result of matching the current travel position information of the electric vehicle and the travel position information of the contact break section stored in the position storage device, and if a starting information of a regenerative braking operation or a powering operation is input, when the switching operation of the switching device is stopped. a power collector for obtaining power from an electric power line; a main motor for driving wheels; a power converter for receiving power supply from the electric power line via the power collector and controlling the operation of the main motor; an electric storage device for supplying DC power to the power converter; and a switching device for controlling a conduction current between a DC portion of the power converter and the electric storage device; characterized in that the system further comprises a position storage device storing a travel position information of a contact break section; and a switching signal output device (i) outputting a switching signal for stopping the switching operation of the switching device, if it is determined that the electric vehicle is not travelling in the contact break section, as a result of matching a current travel position information of the electric vehicle and the travel position information of the contact break section stored in the position storage device, when the switching device is performing switching operation, and (ii) outputting a switching signal for activating the switching operation of the switching device, if it is determined that the electric vehicle is travelling in the contact break section, as a result of matching the current travel position information of the electric vehicle and the travel position information of the contact break section stored in the position storage device, and if a starting information of a regenerative braking operation or a powering operation is input, when the switching operation of the switching device is stopped. a position storage device storing a travel position information of a contact break section; and a switching signal output device (i) outputting a switching signal for stopping the switching operation of the switching device, if it is determined that the electric vehicle is not travelling in the contact break section, as a result of matching a current travel position information of the electric vehicle and the travel position information of the contact break section stored in the position storage device, when the switching device is performing switching operation, and (ii) outputting a switching signal for activating the switching operation of the switching device, if it is determined that the electric vehicle is travelling in the contact break section, as a result of matching the current travel position information of the electric vehicle and the travel position information of the contact break section stored in the position storage device, and if a starting information of a regenerative braking operation or a powering operation is input, when the switching operation of the switching device is stopped.