The utility model provides an automatic floor mopping machine which comprises a floor mopping machine body, the floor mopping machine body comprises a shell, a cleaning assembly and a wiping assembly,the cleaning assembly and the wiping assembly are both located at the bottom of the shell, and the cleaning assembly is located on the front side of the wiping assembly; the walking assembly is located at the bottom of the shell; the radar detector is arranged on the shell so as to detect an obstacle; and the control assembly is connected with the walking assembly and the radar detector, and cancontrol the movement of the walking assembly through a detection signal of the radar detector. According to the technical scheme, the automatic floor mopping machine effectively solves the problem that in the prior art, an automatic floor mopping machine automatically avoids obstacles during automatic floor mopping.