To provide a sieve shaker which prevents the generation of clogging.

A stretched rope 5 of a synthetic resin is welded to the lower surface 1d of a net main body 1 of a synthetic resin and fitting parts 8 are formed on both end sides of the rope and held by a fixture 9. When the fixture is set in a sieve shaker, the rope is stretched, but tension is not applied to the net main body. Therefore, when vibration is applied to the net main body in this state, the net main body is vibrated vertically and complexly to be prevented from being clogged.