System and method for ground information acquisition

The invention discloses a system and a method information acquisition. The system comprises a wireless sensing network, an information acquisition device and a third wireless communication link, wherein the wireless sensing network is arranged at a ground area; the information acquisition device is fixed on an unmanned plane and wirelessly connected with a ground control center for receiving flight command and task instruction; and the third wireless communication link is connected with the information acquisition device and the wireless sensing network, sends the command information of the information acquisition device to the wireless sensing network, sends data information acquired by the wireless sensing network to the information acquisition device, and is used for monitoring the wireless sensing network of the ground area; and when the unmanned plane enters the space above the ground area covered by the wireless sensing network, a communication unit of the wireless sensing network sends a data transmiss