Air pressure sensor, electronic cigarette and starting method of electronic cigarette

The invention discloses an air pressure sensor, an electronic cigarette and a starting method of the electronic cigarette. The air pressure sensor comprises a circuit board, a signal processing module, an air pressure sensing element and a control switch, wherein the air pressure sensing element comprises an air flow channel, a vibrating diaphragm and a back polar plate; the control switch is a touchpad, or the control switch comprises a fingerprint sensor assembly; and the signal processing module comprises a fingerprint identification unit. The electronic cigarette comprises the air pressure sensor, a main controller, a battery, an indicating lamp and an atomizer. When the control switch is triggered and the air pressure sensor detects that an air pressure is larger than a preset value, the air pressure sensor sends an electric signal to the main controller to start the electronic cigarette. According to the invention, the condition of false triggering can be effectively prevented. 本发明公开了一种气压传感器、电子烟及其启动方法，气