Abstract: A detachable vase for separately filling water and retaining plants comprises a lower water-filled bottle body for receiving water; and an upper side of the lower water-filled bottle body having a first connect unit; and an upper bottle body for receiving plants or flowers; the upper connect unit connected to the lower water-filled bottle body; a lower side of the upper bottle body having a second connect unit which can be engaged to the first connect unit. The upper bottle body includes at least two sub-bodies which are engageable to one another. The vase is divided into a first and a second bottle bodies. The lower water-filled bottle body is detachable from the upper bottle body. When it is desired to update the water in the vase, it is only necessary to detach the lower water-filled bottle body from the upper bottle body.