Noise adjusting method and device of range hood, kitchen appliance and storage medium

The embodiment of the invention provides a noise adjusting method and device for a range hood, a kitchen appliance and a storage medium, and the method comprises the steps: firstly, controlling a motor in the range hood to work at a preset current, and calculating an ideal rotating speed of the motor in the range hood when the motor works at the preset current; detecting the actual rotating speed of a motor in the range hood in real time when the range hood works at the preset current; and finally, the real-time working current of the motor in the range hood is fed back and adjusted on the basis of the preset current until the actual rotating speed of the motor in the range hood working with the working current subjected to feedback adjustment is equal to the ideal rotating speed. According to the technical scheme, the problems that when the motor in the range hood works at the preset current, the ideal rotating speed cannot be achieved due to the influence of factors such as the working condition of the rang