The utility model relates to a tundish upper nozzle air hole centering device which comprises a sleeve. A through hole is formed in the sleeve, the sleeve is fixed to an argon blowing hole of a pressing cover of a nozzle quick-changing mechanical device, and the height H of the sleeve is larger than 0.5mm and smaller than 5mm. The tundish upper nozzle air hole centering device has the advantages that the centering device is inserted into two argon holes in an upper nozzle base through the sleeve, the argon blowing hole of the pressing cover of the nozzle quick-changing mechanical device is communicated with the two argon holes in the upper nozzle base, an upper nozzle is accurately positioned in the mounting process of the upper nozzle, the argon blowing effect of the upper nozzle is improved, flow flocculation of a front nozzle is relieved, steel/slag interface fluctuation in the mold is stabilized, the probability of molten steel slag entrapment is reduced, the service life of a submersed nozzle is prolonged, so that smooth casting is ensured, and casting blank quality is improved.