An automatic dog back scratcher system that scratches a dog, comprising a frame assembly; a housing covering the frame assembly; a movable arm assembly supported by the frame assembly and including a movable finger assembly; a treat dispenser assembly; a camera; a motion sensor; a controller configured to sense motion of an object via the motion sensor, determine the object in motion is a dog via the camera, dispense a treat via the treat dispenser assembly to attract the dog to a location adjacent to the automatic dog back scratcher system, and operate the movable arm assembly to move the arm adjacent to the dog and scratch the dog with the movable finger assembly.