The present disclosure provides an electronic atomizing apparatus and an atomizer, a power supply assembly, a control method thereof. The electronic atomizing apparatus may include a housing and a heater, a battery, an angle detection mechanism and a processor arranged in the housing. The housing may be configured to define a liquid storage chamber and a mouthpiece. The liquid storage chamber may be configured to storage aerosol-generating liquid and may be arranged between the mouthpiece and the heater. The heater may be configured to be powered by the power supply assembly. The angle detection mechanism may be configured to detect the tilt angle of the electronic atomizing apparatus. The processor may be connected with both the heater and the angle detection mechanism and may be configured to control the heater to stop heating when it is determined that a tilt angle is greater or equal to an angle threshold.