The show, made by Wall To Wall Television, has seen its audience increase week on week, and took a 38.5% audience share on its highest-rated episode.
Starring Amanda Redman, Dennis Waterman, Alun Armstrong and James Bolam, the new eight-part series will begin filming in London later this year.
Tom Sherry, head of drama at Wall To Wall, said: "Against tough competition, New Tricks has dominated its Monday night 9pm slot, which is a tribute to the writers and a talented cast. I am delighted that the BBC has shown its continued support for this much loved show by commissioning a fifth series and look forward to building on its success."
Created by Roy Mitchell and Nigel McCrery, the show follows a team of grumpy retired coppers back on the job investigating unsolved and cold cases. Firmly stuck in the past, their unorthodox policing methods clash with the political correctness of the modern Metropolitan Police.
New Tricks will be executive produced by Tom Sherry and Alex Graham for Wall To Wall Television and Eleanor Moran for the BBC. It is commissioned by Jane Tranter, controller of BBC Fiction and Peter Fincham, controller of BBC One.