The invention belongs to the technical field of environmental friendliness and discloses an environment-friendly diesel engine generator set which comprises a shell. A generator base is mounted at thebottom of an inner cavity of the shell, and a generator set body is mounted at the top of the generator base. Two silencers and two shock absorption columns are mounted on each of the left side and the right side of the generator set body, and the shock absorption columns and the silencers are alternately arranged from top to bottom. A first suction fan is mounted at the top of an inner cavity ofan exhaust cavity, and a gas filter layer is mounted on the right side of the exhaust cavity. Part of noise further enters sound-insulation damping felt to be isolated and absorbed, the first suctionfan rotates to suck waste gas generated during working of a diesel engine into the exhaust cavity, and the waste gas enters the gas filter layer to be filtered layer upon layer; and a second suctionfan rotates to suck the filtered gas into a gas outlet, and the gas enters the gas outlet to be exhausted after being dried by a drying ball. The environment-friendly diesel engine generator set is simple in structure, the noise is absorbed by multiple times, the waste gas is filtered cleanly by multiple times, and thus the clean and environment-friendly effects are achieved.