Detection　in　natural　disasters　or　man-made　disasters　is　more　and　more　in　important　for　every　countries.　Aerial　dispersal　miniature　robots　are　very　suitable　for　carrying　the　task　above　mentioned.　However,　the　aerial　dispersal　deployment　mode　of　miniature　mobile　robot　demands　excellent　anti-impact　property.　Moreover,　another　crucial　problem　resulted　from　the　small　volume　of　miniature　robots　is　the　difficulty　of　packing　locomotion,　sensing,　computing　and　power　subsystems　into　constrained　space.　To　solve　the　problems　above-mentioned,　a　kind　of　aerial　dispersal　miniature　detection　robotic　system　was　presented　in　the　paper.　Moreover,　anti-impact　experiments　showed　that　the　robot　has　excellent　capability　of　anti-impact.　At　last,　the　experiments　also　showed　that　the　design　of　the　miniature　semi-autonomous　detection　robot　reliable　and　practical.