PROBLEM TO BE SOLVED: To provide a nutrient solution soil culture system, a nutrient solution soil culture control server, a nutrient solution soil culture control program, and a controller which can be introduced even by an individual business operator easily, and achieve advanced control.SOLUTION: A nutrient solution soil culture system 101 includes a controller 102 for transmitting data of a sensor to a nutrient solution soil culture control server 104, and controlling a water supply valve 107, a cultured stock solution supply valve 108, and a discharge valve 110 based on the received data, and the nutrient solution soil culture control server 104 for calculating a control amount of the water supply valve 107, the cultured stock solution supply valve 108, and the discharge valve 110 based on the data of the sensor received from the controller 102, and returning the result to the controller 102.
