The invention discloses a bladeless range hood capable of controlling suction openings respectively. The range hood comprises a body, a cooking fume extracting device mounted inside the body and cooking fume discharging devices mounted above the body; the cooking fume extracting device comprises two parallel fan components; and air outlets of the two fan components of the cooking fume extracting device are connected with the two cooking fume discharging devices respectively. The two fan components of the cooking fume extracting device of the range hood can work separately, so that the two fancomponents can be started simultaneously or only one of the two fan components is started as required, and the electric energy can be saved while produced cooking fume is adsorbed clean. According tothe range hood, the bladeless structure is used for air guiding, so that the cooking fume can be discharged, and the range hood can be washed conveniently; and meanwhile, side suction openings are formed in two sides of the range hood by the aid of special structures of Venturi tubes, suction is performed on the two sides of the range hood, and no power suction devices are required to be added, sothat the range hood is simple in structure and high in reliability.