The article presents the results of the analysis of clinical manifestations of restless legs syndrome in patients with Parkinson's disease based on the assessment scale of the International Restless Legs Group, sleep scale, Epworth Sleepiness Scale, questionnaire for patients with Parkinson's disease and mental status assessment scale. It has been established that restless legs syndrome is a common phenomenon in patients with Parkinson's disease, significantly worsening the quality of sleep and life of patients and accompanied by pain in the lower extremities, fatigue and dyspnea during sleep.