The utility model relates to a floor cleaning machine, including a rack, a sponge roller, a squeeze roller, a water tank, a bag filter, a sprinkler pipe, a catchwater channel, a water pump and a motor. The sponge roller is mounted on the front of the rack through bearings; the squeeze roller is positioned on the right top of the sponge roller, to form a double-roller with the sponge roller; the front side-wall of the catchwater channel is in tangency with the sponge roller; the two side panel of the rack, the middle-and-back part of the sponge roller and the catchwater channel form a closed water logging space; a inlet pipe of the water pump is connected with the bottom of the catchwater channel; the outlet pipe of the water pump is connected with the bag filter in the middle of the water tank; positioned on the right top of the sponge roller, the sprinkler pipe is connected with the water tank through a water supply pipe; the water tank is mounted at the back of the rack; the back bottom of the rack is equipped with two driving wheels; the middle back of the rack is equipped with a handle. The beneficial effect of the utility model is of simple structure, good cleaning effect and labor-saving; the greatest advantage of the utility model is the recycling of water; only a little water can be used for cleaning the entire interior floor, which significantly saves the water resources.