Fuel cell with embedded series/parallel mechanism

The present invention is a fuel cell with embedded series/parallel mechanism, which comprises: an anode circuit board including: anode current collector circuits; anode wirings which are electrically connected to these anode current collector circuit, respectively; anode pads which are configured at the board edge of the anode circuit board and electrically connected to these anode wirings; and, a cathode circuit board including: cathode current collector circuits; cathode wirings which are electrically connected to these cathode current collector circuits, respectively; and, cathode pads which are configured at the board edge of the cathode circuit board and electrically connected to these cathode wirings, in which each cathode pad is corresponding to one opposite anode pad; and, membrane electrode assemblies which are bonded and sandwiched between the anode circuit board and the cathode circuit board; U-shape connection terminals, each of which is clipped between a pair of anode pad and cathode pad in opposite on the anode circuit board and on the cathode circuit board, and the U-shape connection terminal is directly spot-welded and fixed on the paired anode pad and cathode pad without solder welding.