The invention provides an ammonium hydroxide absorption refrigeration and power generation system achieving quadruple heat recovery. The system comprises a second heat recoverer, an evaporator, a generator, an ammonia gas purifier, an absorption-condensation-liquid storage device, a plate heat exchanger, a first heat recoverer and a power generation assembly, wherein the generator, the ammonia gas purifier, the absorption-condensation-liquid storage device, the plate heat exchanger, the first heat recoverer and the power generation assembly are sequentially connected. The power generation assembly is connected with the ammonia gas purifier, and the ammonia gas purifier is connected with the first heat recoverer; the second heat recoverer is connected with the evaporator and the absorption-condensation-liquid storage device; a first heat exchange coil pipe and a second heat exchange coil pipe are arranged in the ammonia gas purifier, the first heat exchange coil pipe, the second heat exchange coil pipe, the first heat recoverer and the second heat recoverer jointly achieve quadruple heat recovery, and the ammonia gas purifier can supply power to the power generation assembly. The performance coefficient COP of the ammonium hydroxide absorption refrigeration and power generation system can be effectively increased, the structure is compact, and miniaturization of an ammonium hydroxide absorption refrigeration unit is promoted.