A portable big game hoist assembly includes a bottom rod that has a first end and a second end. Each of a pair of bottom couplers is attached to one of the first and second ends. Base supports are attached to and extend laterally away from the bottom couplers. A first and second stanchion each has an upper end and a lower end. Each of the lower ends is coupled to one of the bottom couplers. The first stanchion has an aperture extending therethrough. Top couplers coupled to the upper ends attach a rod to upper ends. A first pulley wheel is mounted on the first stanchion. A second pulley wheel is mounted on the second stanchion. First and second tethers are attached to the first pulley and extend through the aperture. The second tether extends around the second pulley. A support rod is attached to each of the tethers.