Portsmouth City Council has committed £70,000 worth of capital funding to undertake repair and maintenance work on the Cenotaph.
The Cenotaph, which is situated in the Guildhall Square, comprises of two memorials to remember those who died in the two World Wars.
The work will include repairs and cleaning to the stonework and bronze plaques.
It will be completed before the Remembrance Sunday commemorations in November.
Councillor Frank Jonas, Portsmouth City Council's Cabinet Member for Resources and Armed Forces Liaison Champion, said: "It's important that we look after the memorials in Portsmouth so they stand the test of time. The Cenotaph acts as an important reminder to future generations of the impact of war and the losses suffered by the city."
The money is part of the council's capital budget which invests in a range of infrastructure schemes throughout the city like buildings and facilities, rather than the day-to-day running of council services that have to be paid through a separate revenue budget.