PROBLEM TO BE SOLVED: To provide an agricultural water supply device capable of easily performing maintenance even if a water plug is clogged with foreign matter. An agricultural water supply device (10) prevents a water tap (12), an electric actuator (14) mounted on the water tap to drive a valve element (32), and scattering of water discharged from a water outlet (26) of the water tap. And a cylindrical shatterproof cover 70. This splash prevention cover is configured so as to have an exposed state in which the spout is exposed, in addition to a splash prevention state in which the spout is covered from the outside to prevent splash of water without removing the electric actuator from the water tap. It [Selection diagram] Figure 8【課題】給水栓に異物が詰まっても容易にメンテナンスできる農業用給水装置を提供する。【解決手段】農業用給水装置10は、給水栓12と、給水栓の上に取り付けられて弁体32を駆動する電動アクチュエータ14と、給水栓の吐水口26から吐出される用水の飛散を防止する筒状の飛散防止カバー70とを備える。この飛散防止カバーは、給水栓から電動アクチュエータを取り外すことなく、吐水口を外側から覆って用水の飛散を防止する飛散防止状態に加えて、吐水口を露出させる露出状態を取り得るように構成される。【選択図】図8