After receiving intelligence from the local community, officers conducted a raid at a property on South Road on 5 August.
As a result of the raid, 541 cannabis plants were seized, most of which were near maturity, with a total street value of approximately £270,000.
Police Sergeant Gary Hole of the enhanced policing team said: “Dorset Police will not tolerate drug dealing in Boscombe.
“We will continue to take robust action for the benefit of the local community against groups and individuals who are dealing drugs in this area.
“Anyone with concerns or information about such activities should contact Dorset Police on 101.
“All calls are treated with the strictest confidence.”
A 41-year-old man from Christchurch has been arrested on suspicion of drugs offences and has been bailed pending further enquiries.
A 21-year-old man from an unknown address has been arrested on suspicion of drugs offences and remains in custody, helping police with their enquiries.
Anyone with information about the misuse of drugs should call Dorset Police in confidence on 101. Alternatively, call the free and anonymous Crimestoppers line on 0800 555 111 where mobile phone tariffs may apply.