The invention discloses a dustbin with an in-situ garbage treatment function. The dustbin comprises a dustbin body, struts and a collecting barrel; the collecting barrel is located under the dustbin body; the upper end of the dustbin body is provided with a cover body assembly, and the cover body assembly is movably connected with the dustbin body; the side wall of the dustbin body is annularly provided with a fixing ring, and the struts are fixedly connected with the dustbin body through the fixing ring; and the dustbin body is internally provided with a smashing mechanism, the upper portionof the smashing mechanism is provided with a first cleaning assembly, and the lower portion of the smashing mechanism is provided with a second cleaning assembly. According to the dustbin, by arranging the smashing mechanism in the dustbin body, garbage can be smashed through the smashing mechanism, the space occupied by the garbage is decreased, and the garbage storage amount is increased; by arranging the first cleaning assembly and the second cleaning assembly, garbage splashing onto the inner wall of the dustbin body can be brushed down through cleaning brushes on the first cleaning assembly and the second cleaning assembly in the smashing process, and the situation that some garbage adheres to the inner wall of the dustbin body, and using is influenced is prevented.