多不饱和脂肪酸具有广泛而重要的生物学功能 ,n 3和n 6多不饱和脂肪酸都是合成类二十碳烷酸化合物的前体 ,它们在体内的平衡对于稳定细胞膜功能、调控基因表达、维持细胞活性有重要作用。其缺乏必引起一系列的病理改变。而临床发现注意缺陷多动障碍的一些症状和必需脂肪酸缺乏症的症状相似 ,于是激起了人们探究两者关系的兴趣。作者对近年来国内外多不饱和脂肪酸和注意缺陷多动障碍内在联系的研究做一综述 Polyunsaturated fatty acids have a wide range of important biological functions. Both n3 and n6 polyunsaturated fatty acids are precursors for the synthesis of eicosanoids and their balance in the body is essential for stabilizing cell membrane function, regulating gene expression, Maintain cell activity has an important role. The lack of it will cause a series of pathological changes. The clinical findings of some symptoms of ADHD and essential fatty acid deficiency symptoms are similar, thus arousing the interest of people to explore the relationship between the two. The authors review the recent studies on the intrinsic relationship between polyunsaturated fatty acids and attention-deficit hyperactivity disorder