An armed robber burst into Weaverham Wine Store waving a gun which may have been real and threatened staff to hand over the cash.
Money was taken by the thief and the workers have been left ‘very upset’.
The suspect targeted the shop in Lime Avenue at 6.15pm on December 18.
He did not fire the gun, but intimidated staff and demanded they gave him the cash before stealing it and fleeing the scene.
It is not known whether the weapon was real or fake.
Cheshire Police inspector Dave Snasdell said: “We take any incidents of this nature extremely seriously and are doing all we can to trace the offender.
“The weapon was not discharged and no injuries were reported, but the staff were understandably left very upset.
“An investigation has been launched and a number of enquiries are being carried out in the area in a bid to trace those responsible.”
The robber is described as white, about 6ft tall, of medium build and aged between 20-30 years old.
He was wearing a black North Face waterproof coat, black tracksuit trousers with white stripes from the knee down and a light-coloured neck warmer.
The man was also carrying a yellow drawstring sports bag.
Anyone with any information is urged to call Cheshire Police on 101 quoting incident number 848 of 18 December
They can also call Crimestoppers anonymously on 0800 555 111.