The utility model discloses an indoor outer high altitude environmental quality's flight testing platform, include: the specialty unmanned aerial vehicle that takes photo by plane carries out the GPS location, decides high, flight path design it through unmanned aerial vehicle ground control terminal, building environmental quality detecting system installs the specialty is taken photo by plane on unmanned aerial vehicle's the instrument connectivity platform for collect building environmental quality data and real -time image data, wireless data dispensing device installs on instrument connectivity platform for through wireless mode to wireless data receiving terminal transmission building environmental quality data and real -time image data, wireless data receiving terminal for transmit the building environmental quality data and the real -time image data that receive to analysis terminal, analysis terminal for carry out analysis processes to building environmental quality data and real -time image data. The utility model discloses a comprehensive science of building environmental quality detects and provides more powerful technical support to research for green building, healthy building provides more favorable data support.