Abstract: Objective To explore the correlation between cognitive ability and motor ability in stroke patients.Methods 30 stroke patients were assessed with the 3 m Timed Up and Go Test (TUG). The anticipated time by patients and the actual time were recorded, and their difference was caculated, named as the cognitive error. They were also assessed with Trail Making Test-Part A (TMT-A). The actual time of TUG, cognitive error and the time of TMT-A was compared among different groups of Brunnstrom stage of lower limb, and their correlation was analyzed. Results There was a significant difference between the actual time of TUG between Brunnstrom stage Ⅲ and Ⅴ (F=4.600, P<0.05). There was positive correlation between actual time of TUG and cognitive error（r=0.844, P<0.01）, time of TMT-A and cognitive error（r=0.508, P<0.01）, time of TMT-A and actual time of TUG （r=0.414, P<0.05）. Conclusion Motor ability of stroke patients can be influenced by deficient attention and motor cognition.

Key words: stroke, motor cognition, attention, motor ability