Building safety comprehensive monitoring alarm device based on Internet of Things technology

The utility model relates to the technical field of alarm devices, and discloses a building safety comprehensive monitoring alarm device based on the Internet of Things technology, which comprises an alarm device support, the alarm device support comprises a device support main body, and the back surface of the device support main body is fixedly connected with two support fixing plates. Four threaded fixing holes are formed in the positions, located at the top and the bottom of the support fixing plate, of the front face of the device support body, and a smoke sensing positioning groove is formed in the front face of the device support body; by arranging the safety indicator lamp, when the smoke detector senses smoke or an alarm button is manually pressed down, the video monitor can be started for judgment, if an abnormal condition occurs, the safety indicator lamp and the buzzer are started to work to evacuate people, and if it is determined that no abnormal condition occurs, an alarm program is canceled, a