Low noise silent diesel generator set, diesel generator set is carefully designed by introducing foreign low noise generator and engine technology; The design concept is advanced and the variety is complete. In addition to a series of diesel generator sets, the product also has the following characteristics: low unit noise, compact overall mechanism, small space occupation; The box is all detachable structure, the box is made of steel plate splicing, the surface is coated with high-performance anti-rust paint, and it has the functions of noise reduction and rain protection; The inside of the cabinet adopts a multi-layer barrier impedance silencer structure and a built-in large impedance silencer. The design of the box structure is reasonable, the bottom of the box is equipped with a large-capacity fuel tank, and two maintenance doors are provided on the left and right at the same time, so as to facilitate the unit fault maintenance; At the same time, there is an observation window and an emergency shutdown fault button on the box, so as to observe the operation of the unit and stop the unit at a fast speed to avoid damage when the unit has an emergency.