The invention discloses a bubbling type reactor which comprises a reactor main body, a bearing mechanism, a screening plate, a pressing mechanism, an air-blowing mechanism, a heating bath mechanism, a material tank and a connection cylinder, wherein the reactor main body, the bearing mechanism and the connection cylinder are connected in sequence from top to bottom; the heating bath mechanism, the reactor main body and the material tank are connected in sequence to form a heating bath cycle; the reactor main body is communicated with the connection cylinder; the connection cylinder is connected with the air-blowing mechanism; the screening plate is arranged at the upper end in the connection cylinder; the pressing mechanism is mounted on the connection cylinder; and the upper end of the pressing mechanism is inserted into the connection cylinder and presses against the screening plate. According to the bubbling type reactor, the mass transfer efficiency is improved, the reactant mixing uniformity is improved, and the activity of immobilized enzymes and the reaction effect and the rate of reactants are guaranteed.