System for realtime measuring radon gas and improving indoor environment

The present invention relates to a system for measuring radon gas and improving an indoor environment in real time which measures levels of radon in the indoor air to lead to or perform ventilation. The present invention provides the system for measuring radon gas and improving an indoor environment in real time, which includes multiple radon measurement means installed in an indoor space to measure the levels of radon in each separate space in real time in order to send the measurement data to an integrated terminal; the integrated terminal, connected to work with a home-network-based in-home device and collecting the measurement data sent from each of the radon measurement means and outputting alarm or display information in accordance with an external control signal set in the measurement data and the in-home device to lead to ventilation or output a ventilation control signal to drive ventilation; and a ventilation system installed in each indoor space in which each of the radon measurement means are installed and separate spaces requiring ventilation, having multiple ventilation holes connected by a wire for connecting the ventilation holes, and driven by the ventilation control signal of the integrated terminal to ventilate the air in each of the indoor spaces through each of the ventilation holes connected by the wire for connecting the ventilation holes, thereby automatically or manually improving the indoor environment in accordance with the measurement results and efficiently monitoring the levels of radon in the indoor air in real time.