The invention relates to a food processor with a good
noise reduction effect. The food processor comprises a main
machine, a motor and a stirring cup, a smashing cutter driven by the motor is arranged in the stirring cup, the stirring cup comprises a cup body and a cup cover covering the cup body, a smashing cavity is defined by the cup cover and the cup body, an opening is formed in the cup cover, and a
noise reduction cover with a hollow inner cavity is arranged at the opening. The
noise reduction cover and the opening are sealed, the
noise reduction cover is provided with an air inlet hole communicating the inner cavity with the crushing cavity and an air outlet hole communicating the inner cavity with the outside, the equivalent inner
diameter of the air inlet hole is D1, the equivalent inner
diameter of the inner cavity is D2, 0.03 < / = D1 / D2 < / = 0.2, the hollow inner cavity does not block an
airflow, and the
airflow rapidly enters the inner cavity and is discharged from the air outlet hole so that the air pressure in the stirring cup is rapidly released; and an overflow prevention effect is achieved, by controlling the equivalent inner diameters of the air inlet hole and the inner cavity,
sound energy in the
airflow enters the inner cavity and then is quickly released, the amplitude of sound
waves is reduced, and the
sound intensity is reduced so that the
noise reduction effect is achieved.