The invention provides a parcel survey system and method based on an unmanned aerial vehicle. The system comprises the unmanned aerial vehicle, a user terminal and a remote control signal transmitter,a flight control system, a front information acquisition unit, a ground information acquisition unit, a positioning module, a first data transmission module, a first image transmission module and a remote control signal receiver are arranged on the unmanned aerial vehicle, the front information acquisition unit, the ground information acquisition unit, the positioning module, the first data transmission module, the first image transmission module and the remote control signal receiver are connected with the flight control system, the remote control signal transmitter is connected with the remote control signal receiver, the user terminal is provided with a measurement and control system, a second data transmission module, a second image transmission module and an image display module, thesecond data transmission module, the second image transmission module and the image display module are connected with the measurement and control system, the image display module is connected with the measurement and control system, and the second data transmission module and the second image transmission module are connected with the first data transmission module and the first image transmission module. The unmanned aerial vehicle for survey replaces manual labor of people, and survey speed is increased. The ground information acquisition unit and the front information acquisition unit areadded to the unmanned aerial vehicle, lower and front view fields of the unmanned aerial vehicle can be simultaneously observed, parcel edges are accurately measured, protection forests can be recognized, and self-security is ensured.