Abstract: Objective To observe the effect of Baduanjin on mild cognitive impairment (MCI). Methods From January to June, 2016, 60 patients with MCI in community were randomly divided into control group (n=30) and training group (n=30). The training group accepted training of Baduanjin for six months, and the control group accepted no intervention. They were assessed with Montreal Cognitive Assessment (MoCA) before and after intervention; while the blood lipid, and serum interleukin-6 (IL-6), acetylcholine (Ach), superoxide dismutase (SOD) and malondialdehyde (MDA) were detected. Results The total score, and scores of visual space and executive function, abstract and delayed memory of MoCA were more in the training group than in the control group after intervention (t>3.576, P<0.01), while the level of total cholesterol, IL-6 and MDA decreased (t>2.744, P<0.05), and the level of high density lipoprotein cholesterol, Ach and SOD increased (t>2.922, P<0.01). Conclusion Baduanjin can improve the cognitive function in MCI patients, as well as reducing blood fat, oxidation and inflammation. There may be some relationship between them.

Key words: mild cognitive impairment, Baduanjin, cognition, blood lipid, inflammation, oxidation