Gas usage amount prediction method and system based on big data

The invention provides a gas usage amount prediction method and system based on big data, and the method comprises the steps: monitoring the gas usage amount of each community in real time, and transmitting the gas usage amount to a gas data management platform in real time; the gas data management platform obtains the total life gas use amount of residents in the first year of the city according to the gas use amount corresponding to each community in the city in each month; acquiring a predicted value of the total use amount of the resident living gas in the second year by using input and output data of the urban population every year; using the gas usage amount of each community in the first year to predict the resident life gas usage amount of each community in the city in the second year, and obtaining the gas usage prediction amount of each community in the second year; and planning a gas resource use strategy of the city in the second year according to the predicted value of the total life gas use amou