The invention discloses a carpet pile cleaning device which comprises a bottom plate; a chassis is fixedly connected with the top of the bottom plate; supporting plates are fixedly connected with the two sides at the bottom of the inner wall of the chassis; a rotating shaft is rotationally connected between the two supporting plates; one end of the rotating shaft penetrates through the supporting plates and extends to one sides of the supporting plates; a first belt pulley is sheathed on the outer surface, extending to one ends of one sides of each of the supporting plates, of the rotating shaft; a rotating roller is sheathed on the outer surface, positioned between the supporting plates, of the rotating shaft; a circular absorbing plate is sheathed on the outer surface of the rotating roller. The invention relates to the technical field of carpet cleaning equipment. The carpet pile cleaning device disclosed by the invention has the benefit that piles on a carpet are conveniently cleaned by people without being manually cleaned by the people, so that a lot of cleaning time of the people is saved, the rapid and convenient cleaning of the carpet piles is realized, and the use comfort of the carpet is ensured.