The invention discloses a municipal environment-friendly garbage truck with an automatic cleaning function. The municipal environment-friendly garbage truck comprises a garbage can, wherein the bottomof the garbage can is equipped with two wheels; one side of the garbage can is equipped with a pull rod; a handrail is arranged on the pull rod; the bottom of the garbage can is fixed with a supporting rod; the bottom of the supporting rod is equipped with an anti-sliding block; one side of the garbage can is equipped with a garbage door; a water inlet tube is arranged above the garbage door; a water drainage tube is arranged below the garbage door; a garbage hole is formed in the top of the garbage can; a garbage storage cavity is arranged on the inner part of the garbage can; the bottom ofthe garbage storage cavity is paved with a screen board; mesh holes are distributed in the surface of the screen board; a sewage slot is formed below the screen board; and a bottom plate is arranged below the sewage slot. The municipal environment-friendly garbage truck with the automatic cleaning function is convenient to use, is strong in environment friendliness, can automatically clear the garbage can, reduces difficulty of cleaning the garbage truck by a sanitation worker, brings convenience to the sanitation worker, and is suitable for being popularized and used.