The present invention is related to an environmental monitoring and analyzing device. The device contains a plurality of sensors, a control unit and a display unit. The different types of sensor obtain values of different environmental parameters. The control unit receives the obtained values of the environmental parameters and compares the obtained values against predetermined standards and criteria which define parameter ranges of the different environmental parameters. A display unit displays a real-time air quality report including a user-friendly interpretation of the obtained values and recommendations in response to the obtained values. By implementing this invention into an embodiment, the environmental monitoring analyzing is carried out instantly by considering the interrelationship of the obtained values of the different environmental parameters. The analyzed results are therefore much more accurate. A real-time comprehensive and easily understood by a non-technical user air quality report is provided.