Characteristic parameter-based energy consumption data analysis method and system

The invention provides an energy consumption data analysis method and system based on characteristic parameters, and relates to the technical field of energy conservation and emission reduction. The method comprises the following steps: establishing a parameterized energy consumption model according to energy consumption data of a building and an average temperature of a time period corresponding to each energy consumption data, and obtaining b0, h1, c1, h0, c0 and energy consumption values of each subitem system; under the condition that b0, h1, c1, h0 and c0 do not meet the energy-saving target, feature parameters which do not meet the set target are selected, corresponding energy-saving improvement technology suggestions in the decision tree are read, and for the feature parameters which do not meet the energy-saving target, the corresponding energy-saving target replaces the feature parameters which do not meet the energy-saving target to form newly-set feature parameters; substituting the newly set chara