The invention relates to a floor tile seam beautifying machine, and belongs to the field of home decoration tools. The floor tile seam beautifying machine is composed of a lifting mechanism, a translation mechanism, a material extrusion mechanism, a seam cleaning mechanism, a vacuum cleaner, a seam pressing mechanism and a base plate walking mechanism; the material extrusion mechanism and the lifting mechanism are connected by bolts; the lifting mechanism is welded to the upper part of the translation mechanism, and the translation mechanism is welded to the upper part of the base plate walking mechanism; and the seam cleaning mechanism is fixed to the front end of the base plate walking mechanism by bolts, the vacuum cleaner is fixed to the rear side of the seam cleaning mechanism by screws, and the seam pressing mechanism is fixed to the rearmost end of the base plate walking device by bolts. According to the floor tile seam beautifying machine, the operation is easy, the size is compact, four processes of seam cleaning, dust absorbing, seam beautifying and seam pressing are combined together, the seam beautifying can be carried out precisely, the efficiency of seam beautifying personnel can be improved, the labor force is reduced, and the labor intensity of workers is reduced.