The invention discloses a cooking electric appliance which comprises a cavity body, a hot air assembly and a metal sealing casing pipe. The cavity body comprises a side plate, and a side plate throughhole is formed in the side plate. The hot air assembly comprises a motor. The motor is installed on the outer surface of the side plate. The motor comprises a motor spindle, and a first step is formed on the motor spindle. The motor spindle can penetrate the side plate through hole and rotate around the axis. A casing pipe through hole is formed in the sealing casing pipe. The motor spindle can penetrate the casing pipe through hole, and the sealing casing pipe can be installed on the outer edge of the side plate through hole in an abutting manner through the first step. The distance betweenthe casing pipe through hole and the motor spindle is smaller than 1 mm. In the above cooking electric appliance, the clearance between the motor spindle and the side plate through hole is filled up through the sealing casing pipe, microwaves can be prevented from leaking outwards from the interior of the cavity body, and the safety performance of the product is improved. In addition, the sealingcasing pipe further has the function of preventing heat in the cavity body from leaking outside, heat losses are reduced, energy consumption is reduced, and the energy-saving and environment-friendlyperformance of the cooking electric appliance is improved.