Abstract: The paper summarizes and overviews the explosion suppression and isolation techniques of passive explosion-proof technology and the automatic explosion-proof technology,which are applied widely at home.On the basis of analyzing the advantages and disadvantages of the techniques,some excellent domestic and international researches are introduced.The vacuum chamber technology,new water curtain explosion-proof technology,porous material explosion-proof technology and so on are proposed in inhibiting gas explosion,which have the potential to open new avenues for domestic gas prevention and control.