The present invention discloses a self-watering flower pot, comprising an outer pot, an inner pot and a water absorption rod connecting the outer pot with the inner pot. One end of the water absorption rod is inserted into the bottom of the said outer pot, and the other end protrudes into the soil of the inner pot. A support pillar integrated with the bottom surface of the inner pot makes the inner pot flush with the outer pot, with a well of water between the two. A water level indicator is placed in the flower pot so that users can check water level any time. The water absorption rod continuously waters the plant automatically. Convenient and time-saving, the device solves the problem of often watering.