The invention discloses a self-watering flowerpot, which comprises an outer pot body and a planting pot, wherein a pushing groove is formed in the inner wall of the outer pot body; an L-shaped bearingplate is slidably connected to the inner wall of the pushing groove; the bottom of the planting pot is abutted against the upper end of the bearing plate; a dismounting groove is formed in the upperend of the bearing plate in a penetrating manner; a dismounting plate is fixed to the inner wall of the dismounting groove; a plurality of mounting holes are formed in the bottom of the dismounting plate; an adjusting spring is mounted in each mounting hole; the bottom of each adjusting spring is abutted against the inner bottom of the outer pot body; and a water storage cavity is formed in the lower part of the outer pot body. The self-watering flowerpot has the advantages that after plants consume water, the overall weight of the planting pot is reduced, and thus the bearing plate moves upwards, and irrigation water in an extrusion groove is extruded into a water delivery pipe, so that the irrigation water is sprayed out of a water spraying pipe to realize irrigation of the plants, human interference is not needed in the whole irrigation process, and the irrigation water can be supplemented in time after the plants consume water.