كتب : Amro Hassan
At the Weserstadion, Torben Max put the visitors ahead on 24 minutes, before Hugo Almeida equalized for Bremen twenty minutes later.
Four minutes after the interval, Polish striker Artur Wichniarek scored again for Bielefeld to put Die Blauen on course for the important win.
The winners are now in 14th place of the Bundesliga table with 17 points, While Bremen remain 10th with 26.
In another game, Bochum beat Karlsruhe 2-0 at the Ruhrstadion with Austrian midfielder Christian Fuchs and Argentine striker Diego Klimocz scoring for the home side.