Abstract: Sucralose is an artificial sweetener commonly used as a food additive. Characterized with high hydrophilicity and outstanding persistence, sucralose has been recognized as an emerging contaminant by the EPA in recent years. Its ubiquitous occurrence in aqueous environments arouses increased research on sucralose detection, degradation, and ecotoxicological effects. This review focuses on detection methods, occurrence, and control technologies for sucralose in natural and engineered aqueous systems. Solid phase extraction-liquid chromatography-mass spectrum is the most popular method for sucralose quantification and it has low ng/L detection limits. Sucralose in sewage is not effectively biologically degraded, thus it enters surface waters and then drinking water systems. In Europe and North America, low μg/L sucralose are found in sewage systems and surface waters, while hundreds of ng/L are reported in drinking water. Although limited data are reported for China, similar concentrations were obtained. Sucralose cannot be removed by conventional treatment systems, as there is limited degradation by chlorine or ozone. While sucralose can be effectively degraded by advanced technologies based on hydroxyl radical and sulfate radical, although these technologies are infrequently used in treatment systems because of their cost and complicated operation, and formation of byproducts that may enhance the toxicity of treated water. Nowadays, insufficient attention is put on artificial sweeteners as emerging contaminants in China. However, artificial sweeteners are widely used in China so theoretically sucralose is a widespread and high-level pollutant in aqueous systems in our country, Moreover, since ozonation and chlorination are commonly applied in Chinese water treatment systems, the risk of incomplete degradation products of sucralose, such as chlorinated byproducts, may threaten drinking water safety in the future.