The utility model discloses a vibropolish equipment of specimen preparation, the polissoir includes constant speed motor (1), connection pad (2), water sealed bearing (3), holds thing dish (4), compresses tightly set (5), polishing dish (6), it is located to compress tightly set (5) water sealed bearing (3) top, said compressing tightly all is equipped with through-hole, this through-hole distance on set (5), resin material (7), connection pad (2) the distance of pivot extension line is greater than 0 and less than or equal to 1cm, compress tightly set (5), resin material (7), connection pad (2) through passing through-hole bolted connection together, polishing dish (6) with hold the annular quotation fixed connection of thing dish (4). When connection pad (2) rotated, water sealed bearing (3) can self-rotation to the rotation of thing dish is held in the drive, reaches better polishing effect.