Abstract: Excessive discharge of ammonia-based wastewater causes serious damage to the ecosystem. The research progress of ammonia nitrogen wastewater treatment is reviewed. This article introduces traditional treatment technologies (biological method, blow-off method, chemical precipitation method, break point chlorination method, ion exchange method, and membrane absorption method) and new treatment technologies (microwave assisted method and ultrasonic method). We briefly introduce the application principles and applicable scope of various methods, and analyze the possible advantages and disadvantages of various processing technologies.