Atomization device and control method thereof

The invention provides an atomization device and a control method thereof. The atomization device comprises a shell, the shell comprises a first cavity, and the first cavity is used for containing medicine; the ultrasonic atomization assembly is arranged on the shell, the output end of the ultrasonic atomization assembly is located in the first cavity, and the ultrasonic atomization assembly is used for conducting atomization treatment on the medicine; and the negative pressure assembly is arranged on the shell, the negative pressure assembly is connected with the first cavity, and the negative pressure assembly is used for enabling the first cavity to be in a negative pressure state. By arranging the negative pressure assembly in the atomization device, a low-pressure and low-temperature environment in the first cavity in the atomization device can be formed, and the ultrasonic atomization effect is improved. In a low-temperature and low-pressure environment, mist particles formed after ultrasonic atomizatio