To provide a shipping assist device applicable for trucks different in height of a load-carrying platform of truck and reduce burden of loading work of the play machine.

The shipping assist device comprises: a roller conveyer 61 having a plurality of rollers; and a pair of right and left jack mechanisms 65 lifting and supporting a front end side of the roller conveyer. The jack mechanisms 65 lifts and elevates the front end side of the roller conveyer, so that the height of the front end side of the roller conveyer can be adjusted depending on the height of the load-carrying platform of the truck. The jack mechanisms 65 is disposed to vertically elevate along the roller frame 61f and ground members 66b of lower ends thereof are extended downward to lift and support the front end side of the roller conveyer 61.