The utility model relates to a potted plant automatic watering device,The utility model comprises a housingOne jointOne plugOne moving rod and one pontoon；The shell has a bottom wallA top wallA ring is connected to the peripheral wall between the bottom wall and the top wall, and a ring is connected to the bottom wallThe top wall and the surrounding wall are surrounded by a water replenishing chamber,The peripheral wall is provided with at least one water inlet hole and a lock hole connecting the water replenishing chamber to the outside,The peripheral wall is provided with an air inlet channel,One end of the air inlet passage is provided with an internal opening,The internal opening is located at the top of the perimeter wall and connects the water supply space,The other end of the air inlet passage is provided with an external opening,The external opening is located at the bottom of the perimeter wall and connected to the outside,The connector has an external connection partAn internal part and a locking part connected between the external part and the internal part,The external part is a self-locking hole which is penetrated outside the shell,The locking part is provided with a water inlet hole,The plug post is placed in the inner joint of the joint,There are several flumes,The linkage rod has a body,The rod body is provided with a push against partA connecting part and a pivoting part connected between the pushing part and the connecting part,The pivoting part is pivoted with the internal connecting part of the joint,The pontoon is connected with the connecting part of the connecting rod；In order to achieve timelyProper amount of automatic watering effect.一種盆栽自動澆水裝置，包含有一殼體、一接頭、一塞柱、一連動桿及一浮筒；殼體具有一底壁、一頂壁、一環狀連接於底壁與頂壁周緣間之周壁及一由底壁、頂壁與周壁共同圍繞出之補水容室，周壁具有至少一連通補水容室至外界之進水孔與鎖孔，周壁具有一進氣通道，進氣通道一端具有一內部開口，內部開口係位於周壁之頂部並連通補水空間，進氣通道另一端具有一外部開口，外部開口係位於周壁之底部並連通至外界，接頭具有一外接部、一內接部及一連接於外接部與內接部間之鎖接部，外接部係自鎖孔穿出於殼體外，鎖接部具有一入水孔，塞柱置於接頭之內接部內，具有若干之出水槽，連動桿具有一桿身，桿身具有一推抵部、一連接部及一連接於推抵部與連接部間之樞接部，樞接部與接頭之內
