Gas supply method for high-rise civil building with adjustable gas supply pressure

The invention relates to a gas supply method for a high-rise civil building with adjustable gas supply pressure. The gas supply method comprises the following steps that a pressure curve P(t) matchedwith the gas consumption law of each time period is obtained; the pressure regulating equipment automatically adjusts the outlet pressure according to the pressure curve P(t), the pressure curve is set to 2150 Pa-2200 Pa in a gas consumption peak period, the pressure curve is 1700 Pa-2200 Pa in other time periods. The fuel gas is regulated by the pressure regulating equipment and then is conveyedto all the user stoves through a fuel gas pipeline; the pressure regulating equipment automatically adjusts the outlet pressure according to the pressure curve during use, so that the pre-cooking pressures of each user in each time period are within the running range value, a low-use-low-voltage regulator is not required, users of all floors in each time period can normally use the fuel gas can also guarantee, the safety o