Engine rotating speed control system for electric control ship

The utility model discloses an electric control marine engine rotating speed control system, which belongs to the technical field of marine engine control systems, and comprises a throttle handle, an electric control unit and an engine controlled by the electric control unit, an engine instrument is electrically connected between the throttle handle and the electric control unit, and the engine instrument comprises an instrument main module. The instrument main module is used for converting the received voltage signal or current signal into a rotating speed signal and then sending a rotating speed message signal through CAN communication; the control system further comprises a change-over switch, and when the change-over switch is in a CAN message control gear, the instrument main module sends a rotating speed signal to the electric control unit through CAN communication; when the change-over switch is in a hard wire control gear, the instrument main module closes a rotating speed message signal sent to the e