Flowerpot provided with air channel and water storage space and used for cultivating plants

The invention discloses a flowerpot provided with an air channel and a water storage space and used for cultivating plants. The flowerpot comprises a circular groove shaped watering and air through hole arranged along the middle part of the height of a flowerpot shell, a backing ring arranged above the circular groove shaped watering and air through hole and arranged on the circumferential inner wall of a flowerpot cavity, an end mouth of a flexible barrel bag having the same planar geometrical shape as the backing ring, a support ring fixed at the end mouth of the flexible barrel bag, and the water storage space arranged below the plane of the bottom edge of the circular groove shaped watering and air through hole and formed in the cavity. After the flexible barrel bag with the support ring is placed on the backing ring of the flowerpot, soil is filled in and water is poured in via the circular groove shaped watering and air through hole, the maximum water level of the water storage space can be as high as b