Organically coupling the operation of stripping and distillation units to achieve high ammonia nitrogen removal and resource recovery under low energy consumption conditions through dual effect energy-saving technology. The device mainly consists of a first stage stripping distillation tower, a second stage stripping distillation tower, a first stage tower kettle liquid storage tank, a second stage tower kettle liquid storage tank, an energy-saving device, a tower top condenser, a material inlet and outlet heat exchanger, a tower top reflux tank, and a supporting pump valve system. The core working principle is to first adjust the pH of the wastewater to alkaline, converting ammonium ions into free ammonia. The wastewater is preheated by a heat exchanger and enters the first effect tower, where high-temperature steam is used for stripping and distillation to remove some ammonia; The effluent from the kettle of the first effect tower enters the second effect tower for further deamination. The ammonia containing steam at the top of the first effect tower serves as the heating source for the reboiler of the second effect tower, achieving graded and cascaded utilization of thermal energy; The ammonia containing steam extracted from the top of the tower can be condensed to obtain 10%~20% concentrated ammonia water or high concentration ammonia gas for recovery. The ammonia nitrogen in the effluent of the tower kettle can be stably reduced to below 15mg/L, meeting the national first-class emission standard. As the industrialization promotion unit of this technology, Pulang Membrane has successfully applied the dual effect energy-saving stripping and deamination technology to the field of high ammonia nitrogen wastewater deamination pretreatment. The device has achieved series, complete set, modular, and fully automated operation.