The invention relates to a movable silent generator room. The movable silent generator room comprises a movable room body, wherein the movable room body comprises a base, side walls and a roof; the side walls comprise a shutter and corrugated board wall bodies; sound absorbing and insulating boards are arranged on the inner sides of the corrugated board wall bodies and the inner side of the roof; a generator is placed in the movable room body; a silent grille is arranged between the generator and the shutter in the movable room body. The sound absorbing and insulating boards disclosed by the invention are formed by splicing modular sound absorbing and insulating modules, so that the sound absorbing and insulating boards are firm in structure, allow sound waves to easily pass through and facilitate noise absorption by sound absorbing and insulating materials; in addition, the sound-absorbing and insulating materials are formed by laminating glass wool and cement-fiber boards with different sound absorbing and insulating coefficients layer by layer, thereby fully absorbing noises with different wavelengths and being better in noise removing efficiency; the outsides of the sound absorbing and insulating materials are wrapped with glass fiber cloth or non-woven fabric, so air between every two layers of sound absorbing and insulating materials can be effectively extruded, and the condition that the noises are leaked without absorption is prevented.