A developing process of mini-type life explorer which is used for lifesaving after natural disaster is studied. The vertical and horizontal probe head are designed. The audio signal collecting circuit is also designed. The signal of image and sound

which collected through probe is transmitted to terminal monitor

can be applied for rescuer to take effective action. The main function index of the pole

mini-type monitor

light source

power supply and storage battery are illuminated. Accordingly

a series of parameters that accord with the whole system are settled. In the end

some problems exist in the process of research

application range of this apparatus and direction of further improvement are summarized.