The 30-year-old rejoined the Championship club in September on a three-month loan switch.
Dobbie, who has had two previous loan stints at Bloomfield Road in 2010 and 2012, has admitted that he is enjoying life at the club.
He told the Blackpool Gazette: "I'd like to extend it until the end of the season. I keep coming back here as I love playing for Blackpool."
Dobbie has scored once in eight appearances for the Tangerines this season.