The instant disclosure provides a focusing method and a focusing apparatus. The focusing apparatus includes a lens device, an image capture device, a focal length adjustment device, and a control device. The lens device includes a liquid lens module and an optical lens module. The optical lens module is disposed corresponding to the liquid lens module. The image capturing device is disposed corresponding to the lens device. The focal length adjustment device is disposed on the optical lens module or the image capture device to drive the optical lens module or the image capture device and change the focal length of the optical lens module. The control device electrically connects the lens device, the image capture device, and the focal length adjustment device to control the focal length of the liquid lens module and the optical lens module.

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