To provide a unloading device with a hydraulic hose causing no sliding wear on the hydraulic hose and no failure in transmitting signals due to an electric signal cable, and to provide a truck using the same.

A thrust member 4 is moved outward when moving a movable plate 2 outward and the thrust member 4 is stopped at this position when moving the movable plate 2 homeward. Thus, loads are pushed out to the side of an unload opening portion 15. There is provided the hydraulic hose 93. A hose reel 92 on which the hydraulic hose 93 is wound is arranged on the side of the thrust member 4. The hydraulic hose 93 is delivered from the hose reel 92 onto the movable plate 2 where it is placed. The hydraulic hose 93 is connected at its delivery end to a fixing portion 109 on the counter side to the opening portion.