Surface cleaning device with mop assembly

The utility model discloses a surface cleaning device with a mop assembly, which relates to the technical field of cleaning equipment and comprises a shell with a roller brush cavity, a dirt scraping strip, a roller shaft and a flexible cleaning belt sleeved on the outer surface of the roller shaft are arranged in the roller brush cavity, and the roller shaft drives the flexible cleaning belt to be in surface contact with a surface to be cleaned. The dirt scraping strip and the flexible cleaning belt are arranged in an interference mode so as to scrape dirt on the flexible cleaning belt, the flexible cleaning belt comprises an annular base material layer and a wiping layer fixed to the outer surface of the annular base material layer, a protruding part is arranged on the outer surface of at least one end of the annular base material layer, the thickness of the protruding part is smaller than that of the wiping layer, and the annular base material layer and the wiping layer are arranged on the outer surface of