The arrest and search were conducted as part of an ongoing operation
Gardaí from the West Cork Divisional Drugs Unit stopped and searched the woman on Higher O'Connell Street in the town at around 5pm on Friday.
A follow up operation was carried out at a house in Kinsale where Gardaí found €8,300 worth of cannabis herb.
The woman was taken to Bandon Garda Station and is due to appear before Bandon District Court on October 2nd.