The invention discloses a fuel cell bipolar plate welding production process. The process comprises single pole plate feeding, hydrogen pole plate welding, oxygen pole plate welding, bipolar plate transferring, manual spot detecting, air tightness detecting, and bipolar plate discharging; the single pole plate feeding is that two pieces of single pole plates, namely the hydrogen pole single pole plate and the oxygen pole single pole plate are placed on bipolar plate transferring in pair; the hydrogen pole single pole plate and the oxygen pole single pole plate are welded when reaching the poleplate welding station, and after welding, the hydrogen pole single pole plate and the oxygen pole single pole plate are compounded into a bipolar plate to be transferred to bipolar plate transferringagain; and the bipolar plate is sent to the manual spot detecting station and the air tightness detecting station through bipolar plate transferring, and the bipolar plate subjected to air tightnessdetection is packaged at the bipolar plate discharging position. According to the process, suction mechanical hands are arranged at multiple places including front end position of a speed chain, the welding position, the tail end position of the speed chain, the air tightness detection feeding position and the air tightness detection discharging position, the bipolar plate is packaged through thedischarging mechanical hands after the welding and air tightness detection processes are completed, the whole production line is completed by matching an electric structure with a fully-automatic mechanical structure.