The invention discloses an efficient and environment-friendly sterilizing and water-taking device. The efficient and environment-friendly sterilizing and water-taking device comprises a bottom plate,wherein a vertical plate is arranged above the bottom plate; a sterilizing room is arranged at one side of the vertical plate; a filter plate frame is in blocking connection inside the sterilizing room; a filter plate frame is arranged on the inner wall of the filter plate frame; an aligning pin is arranged below the filter screen; a waterproof fastening ring is in sleeve connection on the outer wall of the sterilizing room; the inner wall of the waterproof fastening ring is in buckle connection with an insertion card through a fixed card; and an ultraviolet sterilizing lamp tube is arranged inside the insertion card. According to the efficient and environment-friendly sterilizing and water-taking device disclosed by the invention, the sterilizing room is arranged, and the ultraviolet sterilizing lamp tube and the filter screen are separately arranged inside the sterilizing room, so that water can be filtered and sterilized while the device is used, and therefore, functionality of thedevice is improved; the ultraviolet sterilizing lamp tube and the filter screen are separately in blocking connection inside the sterilizing room, so that the ultraviolet sterilizing lamp tube and thefilter screen are very convenient to mount and dismount, and therefore, the efficient and environment-friendly sterilizing and water-taking device is conveniently replaced and maintained, and using efficiency and practicability of the device are improved.