The utility model discloses a provisional pier for construction of girder cantilevers of a cable-stayed bridge and relates to the field of construction of girders of cable-stayed bridges. The provisional pier comprises a first support bar and a second support bar which are vertically arranged; the tops of the first and second support bars are flush and are provided with two connecting bars respectively; the connecting bars are 4-8m high; the top of each connecting bar is provided with a regulator comprising a jack and a counterforce meter; a concrete foundation is fixed to the bottom of each of the first and second support bars; the bottom of each concrete foundation is vertically provided with anchor bolts. The provisional pier has the advantages that construction cost is lower, construction time can be shortened, construction is easier, the counterforce allows whether or not two ends of a girder have a balance torque state to be indicated in real time, and the torques of the ends of the girder can be adjusted by adjusting the jacks so that the torques of two ends of the girder are balanced.