The invention relates to a gas-controlled marching type pressure regulation device. A pressure regulation structure piece comprises a transition bracket, a pressure reduction valve body, a stepping motor, a coupler, a nut, a screw rod, a spring, a membrane and a pressure sensor, wherein the nut is used as a movable spring seat to compress and release the spring; the pressure applied by the spring on the membrane changes, so the membrane deforms, and the aperture of a gas inlet changes with the change of the membrane; closed loop control is implemented inside a system, a gas pressure setting value is set by an industrial personal computer and then is compared and calculated with an actual detection valve acquired by the pressure sensor, after a result is obtained, the industrial personal computer outputs a pulse signal to control the stepping motor to carry out regulation, so as to regulate the aperture of the valve opening; the device can be communicated with an RS232 interface with high stability, can be accessed into the internet, the software adopts a MODBUS-RTU protocol, the data transmission is stable, the generality is good, remote control is carried out, the regulation accuracy is high, the industrial personal computer acquires signals, calculates and compares the results, and then regulates at any time according to the real-time change of gas pressure.