The invention provides a novel sieve plate. The novel sieve plate comprises a sieve plate a and a sieve plate b, wherein a sliding chute c and a sliding chute d are formed in the upper surface of the sieve plate a, a protruding sliding rail e and a protruding sliding rail f are arranged on the lower surface of the sieve plate b, the sliding chute c corresponds to the sliding rail e, the sliding chute d corresponds to the sliding rail f, the sieve plate a and the sieve plate b are the same in size and thickness, and stop dogs are arranged at the top ends of the sliding chutes respectively. According to the novel sieve plate, the density of sieve plate holes can be adjusted according to different purposes, and a user can conveniently use the novel sieve plate.