Provided is a washing machine that can maintain sufficient rigidity while reducing a thickness of a frame by improving the shape of beads disposed at the frame, the washing machine including: a cabinet; a tub that is disposed to accommodate washing water in the cabinet and has a fastening hole formed in a rear side of the tub; a tub fixing part that is provided in plural numbers at a rear side of the cabinet in a position corresponding to the fastening hole; a fixing member that is inserted into the tub fixing part and is fastened to the fastening hole so that the tub is fixed to the rear side of the cabinet; and beads that are provided in plural numbers at both sides of the cabinet so as to have a shape of grooves formed in a direction of an inner side of the cabinet.