Abstract: Aiming at the estimation of personal injury suffered from blast wave attached by counter-terrorist door breaching explosive, overpressure tests of air-blast were implemented under three different actual scenes. Further, the effects of explosion air-blast wave on persons exposing in or outside room, and the effect of environment of airtight outside space on overpressure were investigated, including the factors of overpressure distribution and condition of burglary resistant door and outside space. The results indicate that propagations of air-blast wave in different outside spaces have notable difference. The energy of air-blast wave are mainly consumed by door distortion and overpressure in the rear room of the door would reduce to 10％~20％ of that in the front room.