The invention relates to the technical field of tableware, and discloses packaging box exhaust hole adjusting equipment which comprises a shell and a packaging box cover, a storage bin for containing the packaging box cover is formed in the shell, an exhaust hole is formed in the packaging box cover, the packaging box cover is connected with a hole cover, and two limiting tables are slidably mounted on the two sides of the storage bin correspondingly; a pressing plate is further arranged on each set of limiting table, gaps are formed between the pressing plates and the limiting tables, the edge of the packaging box cover is clamped in the gaps, electrostatic plates are fixedly installed on the lower surfaces of the pressing plates, guide columns are further fixedly arranged in the storage bin, and electrostatic columns are coaxially and fixedly installed in the guide columns; the technical problem that the angle of the exhaust hole cover of the packaging box is fixed and cannot meet the storage requirements of different foods is effectively solved, the angle of the hole cover is adjusted by controlling the charge quantity of the packaging box and the hole cover, and the state of the exhaust hole can be accurately controlled according to the differential requirements of different foods for the exhaust rate and condensate water.