The utility model discloses an integrated evaporative crystallization system which comprises an evaporative crystallization unit, a cold flow supply unit, a heat supply unit, a solid-liquid separating and drying unit and an automatic control unit for controlling operation of each unit, wherein the evaporative crystallization unit comprises an evaporative crystallization chamber; the evaporative crystallization chamber comprises a casing as well as an air extracting device, a condenser, a water receiver, a defoaming layer, a water distributor, an evaporation layer and a brine chamber which are arranged in the casing from top to bottom sequentially; the cold flow supply unit comprises a refrigeration heat exchanger and a cold flow circulation pump; the heat supply unit comprises a heating heat exchanger and a brine circulating pump; and the solid-liquid separating and drying unit comprises a solid-liquid separator, a dryer and a solid-liquid separating pump. Steam produced after evaporation of brine waste water can form purified steam and water through defoaming and condensation, then, steam and water are discharged, a concentrated solution produced through evaporation produces solid salt through solid-liquid separation, the solid salt can be recycled after dried, and zero emission of brine waste water is realized.