After her commissioning and work-up,
Kent spent the balance of her career as an escort to the Royal Navy's
aircraft carrier fleet. She deployed at various times with , , and in the Atlantic, Indian, and Pacific Oceans. She was hard worked throughout the 1960s, along with her batch-1 County
sister ships, as they were the only guided missile-armed destroyers in the fleet until the latter half of the 1960s. One role was as host ship for the
Withdrawal from Empire negotiations in
Gibraltar (citation needed). She suffered a fire during refitting in 1976 but was soon repaired and was present for the
Silver Jubilee fleet review of 1977. In the late 1960s all four of the batch-1 County-class vessels were planned to be upgraded with the superior Sea Slug Mk-2 system, but the upgrades were cancelled in 1967–68 because the amount of time the ships would be out of the operational fleet while being refitted. However, some batch-2 improvements were made during mid life refits, including upgrading the Seacat system from GWS21 to GWS22 and fitting Type 992Q target indicator radar instead of Type 992.
Kent was refitted from June 1969 to December 1972. ==Decommissioning and harbour service==