The utility model discloses an adjustable fuel cell end plate subassembly, the group organizes with lower end plate including the upper head plate, upper head plate group includes from the last pressure equalizing board and the upper head plate that up stack gradually down, lower end plate group includes from the lower end plate and lower pressure equalizing board that up stack gradually down, pressure equalizing board and upper head plate fastening are passed to fastening fuel cell's fastener one end, the other end passes down pressure equalizing board and end plate fastening down, be provided with between upper head plate and the last pressure equalizing board and adjust the last pressure adjustment assembly of pressure between the two, it adjusts the lower pressure adjustment assembly of pressure between the two also to be provided with between end plate and the lower pressure equalizing board down. The pile that this end plate subassembly constitutes is disclosed simultaneously. The utility model discloses a pressure adjustment assembly finely tunes the pile internal pressure who constitutes, has not only guaranteed external dimension, has ensured still that the atress of pilein assembly process is balanced to pile performance and life -span is greatly improved.