Inclusion Criteria:  First onset Unilateral Hemiplegia No obvious cognitive impairment (Mini-Mental State Examination (MMSE) score > 23) The FMA upper limb movement score is above 30 points Those who have used a smartphone for more than 3 months before the onset of the disease or at present Those who have no obvious vision loss and can read the text on mobile phones clearly Those who own a smart phone  Exclusion Criteria:  Language barriers or aphasia Other orthopedic diseases (such as severe shoulder pain, joint contractures) or nerve damage (such as peripheral nerve damage) that affect the movement of the upper limbs Feel severe Absence, FMA sensory score <12 points Other progressive diseases such as cancer, amyotrophic lateral sclerosis, multiple sclerosis, etc