The invention discloses automatic pretreatment equipment for regenerated aggregate. The equipment comprises a material inlet system, a slurry coating system, a material outlet system and a control system; the material inlet system, the slurry coating system and the material outlet system are all connected with the control system, the side of the slurry coating system is provided with the materialinlet system, and the material outlet system is arranged below the slurry coating system; and the slurry coating system comprises a stirring barrel, the two sides and bottom of the stirring barrel areconnected with telescopic arms, the upper part of the stirring barrel is provided with a slurry supply chamber, the top of the slurry supply chamber is provided with a piston piece, the bottom is provided with a plurality of slurry outlet holes, a rotating shaft is arranged between the slurry supply chamber and the stirring barrel in a pass-through manner, and the rotating shaft is connected witha power device located on the slurry supply chamber. The equipment provided by the invention can pre-wet the regenerated aggregate to different degrees, reduce negative influences of high water absorption and large porosity of the regenerated aggregate, realize automatic treatment of slurry coating of the regenerated coarse aggregate, prepare the high-strength regenerated aggregate and improve utilization value of the regenerated aggregate.