The store in the Broadway Shopping Centre, Bradford has been temporarily closed with immediate effect, Vodafone said.
The whole team are now self isolating for 14 days and the store is being deep-cleaned.
It is expected to reopen on Sunday, September 6 according to Vodafone.
A Vodafone spokesperson said: “We have temporarily closed our Broadway Shopping Centre store as one of our colleagues has tested positive for Covid-19.
"He and the rest of the team are now self-isolating for 14 days and we have deep-cleaned the store, which will re-open on Sunday 6 September.”