Disclosed is a gas passage pressure response system (100), comprising: a first pressure supply end (110); a first branch (120), wherein the first branch (120) comprises a first pressure-relief valve (121) and a first electric proportional valve (122) which are successively connected, and the first pressure-relief valve (121) is connected to the first pressure supply end (110); a second pressure supply end; a second branch (130), wherein one end of the second branch (130) is connected to the second pressure supply end; a third branch (140), wherein the third branch (140) comprises a first on-off valve (141); an inlet of the first on-off valve (141) is respectively connected to an outlet of the first electric proportional valve (122) and the other end of the second branch (130); and an output end (150), wherein the output end (150) is connected to an outlet of the first on-off valve (141); and a first pressure sensor (142) is provided between the output end (150) and the first on-off valve (141).