The invention discloses a heat exchange network-based energy consumption analysis method. The method comprises the following steps: I, analyzing all loads in an intelligent grid park and dividing the loads into variable temperature equipment and constant temperature equipment according to different forms; II, calculating energy consumption of the variable temperature equipment; calculating the energy consumption of the constant temperature equipment; III, converting the energy consumptions obtained by the steps into equivalent energy consumptions under corresponding energy supply modes according to different energy supply modes; IV, drawing an enthalpy-temperature diagram of all the loads with the temperature and the equivalent energy consumptions as coordinate axes; V, selecting a pinch point according to the actual condition of the intelligent grid park; VI, providing an energy consumption optimization scheme according to the pinch point. All the loads are divided into the variable temperature equipment and the constant temperature equipment, so the method is not limited to consideration of heat energy, the energy utilization condition of each type of energy is comprehensively considered, and the method is more accurate than the existing method.