The invention discloses a frequency and wavelength dual-tunable frequency modulation continuous wave optical carrier signal generation system, including a signal generator, a tunable laser, an optical signal amplifier, a filter and an array waveguide grating which are connected in sequence. The signal generator is used for generating low-frequency modulation continuous waves for modulating the laser; the tunable laser outputs spectral signals after intensity modulation and phase modulation according to the received low-frequency modulation continuous waves; the optical signal amplifier is used for amplification processing of the spectral signals; the filter is used for filtering two spaced optical sidebands among the amplified spectral signals, thereby obtaining high-frequency modulation continuous wave optical carrier signals; and the array waveguide grating is used for outputting the high-frequency modulation continuous wave optical carrier signals. The system provided by the invention generates the high-frequency modulation continuous wave signals, and has the characteristics and advantages of central frequency and wavelength dual tenability, simple structure and easy expansion.