A crop production history IoT system, which is provided with a connected flood tank, a water tank, and a liquid fertilizer tank. The water tank and the liquid fertilizer tank are connected to an irrigation supervisor through an Internet of Things three-way electric control valve, and the irrigation supervisor extends outwards to irrigate crops. Irrigation pipes, between the detention pond and the water tank, between the water tank and the liquid fertilizer tank, and the front end of each irrigation pipe are each equipped with a pump controlled by the Internet of Things controller, in the flood tank, the water tank and the liquid fertilizer tank. Equipped with an IoT water level sensor, the aforementioned multiple IoT nodes are wirelessly connected to an IoT gateway, the sensed data is uploaded to the IoT cloud platform and stored as a production history, and the multiple nodes are controlled automatically or manually according to the data The IoT node achieves the functions of automatic crop irrigation monitoring, manual adjustment and production history recording.一種農作物生產履歷物聯網系統,設有相連的滯洪池、水槽與液態肥料槽,水槽與液態肥料槽透過一物聯網三通電控閥連接一灌溉主管,由灌溉主管向外延伸用於灌溉農作物的灌溉管,在該滯洪池與該水槽之間、該水槽與液態肥料槽之間以及各灌溉管的前端各設有受物聯網控制器控制的抽水泵,在滯洪池、水槽與液態肥料槽各設有物聯網水位感測器,前述多個物聯網節點與一物聯網閘道器無線連接,將感測數據上傳至物聯網雲平台儲存為生產履歷,並依據數據自動或手動地控制多個物聯網節點,達到農作物自動化灌溉監控、手動調整與記錄生產履歷的功效。