Goalkeeper Ju Kwang-min saved Arslanmyrat Amanov's sudden death penalty to seal a 5-4 win for ten-man Korea DPR after a 1-1 draw after extra-time at Sugathadasa Stadium.
But despite their numerical disadvantage, Korea DPR continued to dominate and deservedly equalised as Ryang Yong-gi headed home with 14 minutes remaining.
Begli Nurmuradov kept Turkmenistan in the contest at 4-4, but in the first round of sudden death Ri Kwang-hyok confidently converted before Ju beat away Amanov's rising effort.
Coach Jo Tong-sop, who is also part of the full national team set-up, insists "five or six" of his squad will be part of Korea DPR's side in South Africa later this year, while Ryang Yong-gi boosted his chances by topping the goalscoring charts with four goals in five games and also claiming the most valuable player award.
Earlier, Numondzhon Khakimov's spectacular first-half strike helped former champions Tajikistan beat Myanmar 1-0 to claim third place and automatically qualify for the 2012 Challenge Cup alongside Korea DPR and Turkmenistan.