Large area array digital aerial photography system plays an increasingly important role in various industries, especially in large-area geographical information collection, the system has high precision, fast real-time, low requirements for weather, flight conditions, cycle Short-term, low-cost, abundant information and other characteristics show a great advantage, can meet the timeliness of geographical national information acquisition, the formation of high-quality true color aerial remote sensing images, can be widely used in land use surveys, land surveys, The monitoring of geographic conditions, such as the updating of spatial basic information and the dynamic monitoring of geomorphological changes, can also meet the demand for “digital cities” and large-scale high-resolution images, and is an ideal data source for the construction of digital cities.