The utility model relates to the field of daily necessities, in particular to a drinking bottle. The drinking bottle comprises a bottle body, two ends of which are provided with a first circular bottle mouth and a second circular bottle mouth. The first bottle mouth and the second bottle mouth are connected with a bottle cap and a bottle bottom and then provided with external threads. The bottle cap and the bottle bottom are provided with internal threads connected with the external threads. According to the above embodiment, the drinking bottle has following beneficial effects: the bottom of the bottle body is provided with the openable bottle bottom, by means of which the cap is sealed; and when drinking bottle needs cleaning, the bottle bottom is turned on so that the bottle body and the bottle bottom can be cleaned conveniently and rapidly to be much cleaner.