The invention discloses an integrated-installation energy-saving intelligent wall body based on a cavity liquid pressurized template. The integrated-installation energy-saving intelligent wall body based on the cavity liquid pressurized template comprises an S-shaped heat exchange PB pipe, a heat fusion joint, a surface roughened thick-wall stainless steel pipe, a stainless steel pipe joint, a surface roughened plastic-lined steel pipe, an plastic-lined steel pipe joint, an integrated side template, an integrated inner wall surface template, a medium-temperature phase-change energy storage filler, the cavity liquid pressures template, a cavity liquid pressured template upper opening, a phase-change energy storage template lower opening, a temperature sensor, a pressure sensor, an electricvalve, a high-heat capacity concrete material, steel bars, a phase-change heat storage material main tank, a pressurizing-filling dual-purpose pressure stabilizing pump, a feeding pipe, a maintenanceopening, a discharging opening, a material A feeding opening, a material B feeding opening, a heat recovery heating liquefaction module, an upper fluid supplement opening, a wire passing box, an assembled bottom box, a communication opening, a reserved maintenance opening, a fire controller and a fire-fighting refrigeration water supply interface. The integrated-installation energy-saving intelligent wall body based on the cavity liquid pressurized template has the beneficial effects of reducing concrete consumption, reducing transportation and construction difficulty and saving energy.