It follows the search of a house near Belfast city centre.
The cannabis factory was found during a search at Ventry Street on Monday off the Dublin Road.
Belfast city centre crime manager Det Ch Insp Colin Gillis said: “Keeping people safe is our number one priority and the discovery of this cannabis factory is another example of this.
“Drugs destroy lives and are a scourge on society.”
He added: “I would appeal to all members of the community to report any suspicious activity to police on the non-emergency number 101.”