Data on the prevalence and features of cognitive impairment in patients with rheumatoid arthritis (RA) are presented. Cognitive impairment was noted in 66% of patients, it did not reach the threshold of dementia and met the diagnostic criteria for moderate cognitive impairment. Anxiety-depressive spectrum disorders were found in 94% patients. Cognitive impairment was associated with apathic affect and anxiety-depressive spectrum disorders (depressive episodes, dysthymia, and elevated anxiety). The impairment of thinking was correlated with the high to moderate inflammatory activity including non-joint RA symptoms, higher levels of proinflammatory cytokines and low doses of glucocorticoids. Cognitive impairment was not associated with the duration and character of standard treatment of RA and concomitant cardiovascular diseases.