PURPOSE: A device and method for monitoring facility environment are provided to enable a user to monitor a facility in real time by automatically collecting environment information of the facility in real time. CONSTITUTION: A sensor(50) senses information about environment conditions for each section of a facility(20). A server(70) analyzes the information from the sensor. The server transmits environment monitoring information of each section to a user terminal. A database(72) stores the environment monitoring information and the environment condition information. [Reference numerals] (10) Vinyl house; (100) Smart phone; (12) Pen; (14) Horticulture greenhouse; (30) Temperature sensor; (32) Humidity sensor; (34) Fire detecting sensor; (36) Flow sensor; (38) CO2 concentration sensor; (40) CO concentration sensor; (42) Power failure detecting sensor; (60) Wire/wireless network; (70) Server; (72) Database; (80) Flashing light
