A water bucket for cattle is provided to enable a partial repair with easiness, to cleanse or filter any foreign substances that are produced when cattle drink water, and to supply warm water to cattle during winter. A water bucket is constituted by a body(10) which is separated from the bottom by a predetermined distance and has a frame(11), a storage(20) placed at the frame(11) of the body(10), and a waterspout(30) having a water intake section(32) with a predetermined depth and a flange(31) for encompassing a flange(21) of the storage(20). The storage(20) includes a control box(23), a heater connected to the control box(23), a sensor, and a slot valve(24) for maintaining a certain level of water. For safe installation of the storage(20), a support frame(12) is provided at the bottom of the frame(11) of the body(10), and a stopper(13) is provided at the front end of the support frame(12).
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