Floor brush of floor scrubber and floor scrubber adopting floor brush

The floor brush comprises an upper cover and a lower cover, the upper cover is connected with the lower cover, a rolling brush assembly, a power assembly and a suction assembly are arranged on the lower cover, a first installation position is arranged on the lower cover, a master control PCB is arranged in the first installation position, an indication panel is arranged on the upper cover, and the indication panel is arranged on the lower cover. The rolling brush assembly, the power assembly, the suction assembly and the indication panel are electrically connected with the master control PCB. According to the floor brush of the floor washing machine, the indicator lamp panel, the master control PCB, the water quality detection assembly, the loudspeaker assembly and the clear water shortage detection assembly are integrally installed on the lower cover, wiring and installation are convenient, and the situation that wiring between the floor brush and the floor washing machine body is disordered is avoided. 本实用新