The invention discloses a smoke guide assembly and a range hood using same. The smoke guide assembly comprises a frame and at least two smoke guide pieces arranged in front and back at intervals, wherein each smoke guide piece extends in the left-right direction, each smoke guide piece extends upwards from the frame and obliquely extends forwards relative to the frame, and therefore, an oil smokesuction channel gradually inclines forwards from bottom to top is formed between the two adjacent smoke guide pieces. Compared with the prior art, the smoke guide assembly and the range hood using same have the advantages that the whole smoke guide piece inclines in the vertical direction, so that the oil smoke suction channel is formed between the two adjacent smoke guide pieces in the front andback directions; and the channel gradually inclines forwards from bottom to top, and the air inlet direction is changed, so that the area of the rear suction oil smoke is enlarged, and the oil smoke is prevented from escaping behind the range hood during applying the smoke guide assembly to the range hood.