This study was carried out to evaluate the feasibility of air-stripping by DIWS(Dip Injection Wet Scrubber) system on high concentration of ammonia wastewater more than 10,000 mg/L. In the case of changing temperature from 30℃ to 70℃ maintaining pH 12.5 within the 72 hours, the removal efficiency of T-N by the present treatment plant was increased to 90.5% which was initially kept 70.3%. Although the high concentration of T-N with 9,120∼12,955 mg/L was treated by micro-bubble through DIWS system maintaining the temperature of 30℃ within the 20 hours, the removal efficiency of T-N reached 91.9%, which indicated the possibility of air-stripping.