To provide an inexpensive transportable flowerpot automatic water supply device capable of keeping flowering trees flowering instead of cut flowers longer and lively and within a limited occupied area of a grave.SOLUTION: The water supply device has a storage container provided with three sets of water supply tanks and a plastic frame for holding three sets of potted flowers, respectively, and it is possible to supply water for a long time by connecting a water supply tank and potted flowers with a water supply Respectively. This makes it possible for people living in the distant, busy people to offer flowers of lively victims to the deceased even if they celebrate Monday.(FIG.【課題】切花に代わる植木花をより長く生き生きとした状態に保つと共に、お墓の限られた占有面積内に設置できる安価な可搬式植木鉢自動給水装置を提供する。【解決手段】給水装置内部に夫々3組の給水タンクと3組の鉢植え花を保持するプラスチック枠を備えた収納容器を備え、給水タンクと鉢植花を給水具で結ぶことにより長期の給水を可能とした。これにより遠方に居住する人、繁忙な人が月命日のお参りでも故人に生き生きしたお花のお供えが可能となる。【選択図】図3