The utility model relates to a long -range detection system of smog based on self -contained navigation unmanned aerial vehicle, include: be suitable for the unmanned aerial vehicle who surveys smog, and with unmanned aerial vehicle wireless communication's basic station server, unmanned aerial vehicle includes: machine year processor module, the smog detection sensing unit, the machine year navigational positioning module that link to each other with this machine year processor module, unmanned aerial vehicle still has the device of taking photo by plane, video sending to the basic station server of just will taking photo by plane, smog long -range detection system still include: car navigation system with basic station server wireless communication, this system is suitable for the exact position that the smog that sends according to unmanned aerial vehicle takes place the area to sail the this area into as target location guide vehicle, car navigation system includes: on -vehicle processor module, the vehicle navigation orientation module, the data storage module that link to each other with this on -vehicle processor module.