A guiding unit for agricultural products for a device for harvesting the agricultural products comprising a supporting body (2) connectable to the frame (101) of the harvesting device (100) and equipped with a supporting portion (2a) which, during use, is located above the unloading means (106), and a guiding element (5) extending mainly along the main line (A) and connecting means (8) operatively interposed between the guiding element (5) and the supporting portion (2a) of the supporting body (2), designed to allow a translation of the guiding element (5) towards and away from the supporting body (2).