Method and device for testing packaging force of fuel cell in operation state

The invention discloses a method and a device for testing the packaging force of a fuel cell in a running state, and the method comprises the following steps: respectively and fixedly installing end plates at two sides of the fuel cell on a fuel cell system bottom plate, and forming a fuel cell system together with a peripheral device, wherein the fuel cell comprises an end plate a, an elastic element, an insulating plate a, a collector plate a, a plurality of single cells, a collector plate b, an insulating plate b and an end plate b which are connected in sequence; a base of a distance measuring instrument is fixedly installed on a fuel cell system bottom plate or an end plate a, one end of a distance measuring positioning block is fixedly installed at the position, close to an elastic element, of an insulating plate a, and the other end of the distance measuring positioning block is led out of the middle of the end plate a and aligned with or makes contact with a probe of the distance measuring instrument;