The 2009–10 B Group was the 54th season of the Bulgarian B Football Group, the second tier of the Bulgarian football league system.
The season started on 8 August 2009 and finished on 23 May 2010 with the A Group promotion play-off between the runners-up from both divisions.
1Only 15 teams will compete in the East B PFG this season due to no team from the Bulgarian North-East V AFG being promoted.
Both the champions FC Orlovets Pobeda and runners-up FC Benkovski Bjala refused to participate in the Second Division and chose instead to continue to compete in the Third Division.
Source:[1] [1]