Electronic atomization device, main machine of electronic atomization device and atomizer

The utility model relates to an electronic atomization device and a host and an atomizer thereof. The electronic atomization device comprises a liquid transmission assembly used for driving atomized liquid, a conductive liquid supply pipe communicated with the liquid transmission assembly, a temporary storage cavity communicated with the liquid supply pipe, a heating piece communicated with the temporary storage cavity and used for heating and atomizing the atomized liquid, and a controller electrically connected with the liquid transmission assembly. The liquid supply pipe and the heating piece are electrically connected with the two electrodes of the controller respectively, the liquid supply pipe and the heating piece can form a connection or disconnection under the action of the atomized liquid, and the controller can control the liquid transmission assembly to start liquid supply based on the disconnection state between the liquid supply pipe and the heating piece. Whether atomized liquid exists in the b