An automatic water supply control device in a paddy field is provided. The water supply is stopped by being inserted into a water pipe of a water channel and electrically driven by a signal from a water level sensor to move up and down a water stop valve 5 to perform water supply and water stop by a water amount adjustment unit 6 with a pin setting. The power switch, day / night / night switch, open / close switch, and optical sensor provided in 8 can be used to set all-day water supply, night water supply, rice-drying, pouring water, and all water supply modes. An automated water supply control device with an anti-theft structure that cannot be cut when cutting with a metal saw or the like from the outside. [Selection diagram] Fig. 1【課題】水田における自動化した給水制御装置を提供する。【解決手段】水路の導水管に差し込まれ、水位センサの信号により、電動で止水弁５を上下して給水、止水を行い、水量調整部６において給水量をピン設定で行い、制御器８に備えた電源スイッチ、昼夜／夜間選択、開閉スイッチ、光センサにより、終日給水、夜間給水、田干し、掛け流しと総ての給水モードを設定出来、さらに導水管内にツバ付き内輪を挿入し、外から金鋸等で切断を図った時切断できない盗難防止構造を持つ自動化した給水制御装置。【選択図】図１
