The utility model discloses a silence dust sealing chain, including inner plate, outer chain plate, sleeve, round pin axle and roller, be formed with at least cover link joint body on the inner plate,and hardness is less than the overburden of inner plate body. Preferred, the overburden covers the whole surface of link joint body, the thickness that the overburden is located link joint body sideis 0.50~1.50mm, the thickness that the overburden is located link joint body faceted pebble is 0.10~0.30mm, the overburden comprises vulcanite layer, plastic layer, reinforced plastics layer or nylonlayer. The beneficial effects of the utility model are that, forming through both sides on the inner plate and hanging down the hardness overburden, both played the sealing member effect, still have and inhale the the noise reduction effect that shakes, simplified sealed chain structure, its long service life, small in noise, manufacturing and use cost are low. Compare with the sealed chain that adopts O shape sealing washer, assembly efficiency can improve more than 50%, and life can improve about 15%, and the noise can reduce by 3~5 decibels, synthesizes manufacturing cost and can reduce about 10%.