A bale cleaning truck is presented. A flatbed trailer has a conveyor belt for moving one or more bales off the trailer. There are one or more brushes for cleaning a hay bale as it travels down the trailer where at least two vertical brushes that are mounted vertically on the sides of the trailer. A roof brush is attached to the top of the trailer and the final brush is mounted above the trailer to clean the top of the bale. Pumps for operating the brushes and the conveyor belt are hydraulic.