The invention relates to a scrubbing device, in particular to a periodic scrubbing device for mosaic tiles. The mosaic tiles can be thoroughly scrubbed by the periodic scrubbing device. The periodic scrubbing device for the mosaic tiles comprises a scrubbing device, a swing rod, a first fixing seat, a support rod, a cylinder, a swing seat and wheels. The wheels are symmetrically arranged on the left side and the right side of the bottom of the first fixing seat, the swing seat and the support rod are arranged on the top of the first fixing seat, the swing seat is positioned on the right side of the support rod, the cylinder is hinged onto the swing seat, the swing rod is hinged to the upper end of the support rod, and the right side of the bottom of the swing rod is hinged to the upper end of the cylinder. The periodic scrubbing device for the mosaic tiles has the advantages that the mosaic tiles can be thoroughly and brightly scrubbed by the periodic scrubbing device, and the periodic scrubbing device is high in scrubbing speed; the periodic scrubbing device is provided with a fan, and accordingly the scrubbed mosaic tiles can be dried by air at high speeds.