Police are looking for three men who robbed the Bay View Four Square just before 7pm on Sunday.
Two men entered the store just prior to closing time armed with weapons, one of which was a cricket bat.
After threatening the shop worker the men took several hundred dollars from the store till before running to a waiting vehicle driven by a third man.
Both men concealed their faces using bandannas.
They were described as Mäori in their mid-twenties.
Police are keen to speak to anyone who may have seen three people acting suspiciously around the Bay View area between 6.00pm-7:00pm on Sunday.
Appeals are also being made for sightings of the vehicle used in the robbery, a white older styled saloon that has been driven from Hill Road towards Napier after the robbery.
Anyone with information about the robbery should contact Detective Anna Morrison at HB Police on 06 8310700 or information can be left anonymously on Crimestoppers 0800 555 111.