The present invention minimizes the ventilation and reduces the energy required to maintain the temperature of the agricultural cultivation facility. It is possible to maintain the concentration of oxygen and carbon dioxide generated by the photosynthesis and respiration of the agricultural products generated in the cultivation facility in a state suitable for the growing environment of the agricultural products And to provide a system for controlling and correcting agricultural cultivation environment using the IoT. In order to solve the above problems, the system for controlling and controlling the agricultural cultivation environment using IoT according to the present invention is provided with a facility device including a shading device, a water supply device, a ventilation device, a temperature control device and a humidity control device, Agricultural production facilities for growing agricultural products； Detecting the temperature and humidity of the outside and inside of the agricultural product cultivation facility, detecting the concentration of oxygen and carbon dioxide in the agricultural product cultivation facility, detecting the illuminance inside the agricultural product cultivation facility, and storing the inside of the agricultural product cultivation facility A control device for controlling the facility device installed in the agricultural product cultivation facility based on temperature, humidity, oxygen, carbon dioxide and illuminance； A relay device for transmitting / receiving control / setting information of the control device and a control signal for controlling the control device through a wireless Internet network or a CDMA network； And a mobile device that receives and displays setting information and control information of the control device through communication with the relay device and transmits a control signal to the facility device included in the agricultural product cultivation facility to the control device, And the control
