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<i>Huangshui</i> is a typical organic wastewater in Chinese Baijiu production, with high pollution and valuable ingredients. Conventional wastewater treatment leads to resource-wasting and environmental pollution. It is urgent that the demand for effective <i>Huangshui</i> treatment with the development of the Baijiu-making industry. This review systematically summarizes recent studies, revealing the main characteristics and application of <i>Huangshui</i>, focusing on the application of the rich microbial resources and flavor substances, which provides a practical approach to cascade and full use of <i>Huangshui</i> in medicine, cosmetic, functional food, fertilizer, and wastewater treatment fields. Further research suggested that <i>Huangshui</i> can also be used as an external carbon source for the denitrification system or as an organic liquid water-soluble fertilizer for more fruits and grains. The applications favor improving production efficiency and lowering pollutant emissions and introduce novel concepts for the sustainable development of related industries. Thus, Chinese Baijiu plants can achieve the near-zero emissions of wastewater and cleaner production.