A kind of unpowered water-feed, including: a water tank, if what at least one is planted above basin body, storing water； And a feeding control structure of water, if on the what water tank, and connect with a water pipe, it can supply water into water tank, make the water in water tank with predetermined amount； And a siphon pipe, front end are connected to the water tank, Hou end is equipped with an at least trickle irrigation syringe needle, and sustainable water supply gives the plantation basin body, uses and achieve the purpose that unpowered water supply using siphonage. 一種無動力供水器，其中包括：一水箱，設於至少一種植盆體上方，可儲水；及一進水控制結構，設於該水箱上，並與一水管連接，可供水至水箱中，使水箱中具有預定量的水；及一虹吸管，前端連通該水箱，後端設有至少一滴灌針頭，可持續供水給該種植盆體，藉以利用虹吸現象達到無動力供水的目的。
