The invention discloses a filler ring applicable to kitchen oil fume purification and filler. The filler ring comprises a circular main body, several rectangular windows are formed in the wall face ofthe circular main body, the spacing of every two adjacent rectangular windows is the same, a vertical beam is formed between every two adjacent rectangular windows, a first stretching hole is formedin each vertical beam, an arc fin which bends inwards is arranged on the inner wall, opposite to each rectangular window, of the circular main body, a second stretching hole is formed in each arc fin,and the first stretching holes are opposite to the second stretching holes. The filler has the advantages that the specific area is large, the gap rate is high, the piezoresistance is small, the noise is small, and the oil fume removing rate is high.