The present disclosure provides a dehumidifier. The dehumidifier includes a shell, a dehumidifying device and a driving device. The shell is provided with an air inlet and an air outlet. The dehumidifying device is configured to dry and dehumidify introduced air. The driving device is configured to drive air to pass through the air inlet, the dehumidifying device and the air outlet in sequence, so that the driving device can drive the air with high moisture content to enter the shell through the air inlet and condense the water vapor in air into water drops under the action of the dehumidifying device, thereby achieving the dehumidification effect.