The utility model relates to an anticorrosive scale control high temperature of oil field sewage output heat pump. Its technical scheme is: including phase transition heat exchanger, vacuum pump, steam generator, condenser, absorber, the phase transition heat exchanger pass through vacuum pump and steam generator intercommunication, steam generator's output connect the condenser, the bottom of condenser is the absorber, upper portion one side of condenser be equipped with former oil -in, lower part one side is equipped with the crude oil export, is equipped with the sewage entry in one side of phase transition heat exchanger. The beneficial effects are that: the utility model discloses a phase transition heat exchanger reaches the purpose of the anticorrosive scale control of heat pump, and in addition, high -temperature steam direct heating crude oil in the condenser has improved the thermal efficiency, corrode high mineralization degree oil field extraction water by force and turn into the low water that pollutes, form steam, reached the effect of anticorrosive scale control, protection heat pump, solved the corruption and the scale deposit problem of oil field extraction water.