Background: Stroke patients experience hemiparesis. Stroke management is done by pharmacological and non-pharmacological means.Pharmacologically, stroke management can be given fibrinolytic, while non-pharmacologically, exercises such as mirror therapy can be done,which is a therapeutic intervention that focuses on the movement of non-problematic limbs using mirrors in the hope of reducing nerve damage, reducing and preventing recurrent strokes. Objective: to determine the effect of mirror therapy can increase muscle strength in patients with non-hemorrhagic stroke. Methods: The type of research used is pre-experiment design without control group. The intervention given is the provision of mirror therapy for a duration of 15 minutes 6 times a week. The research was conducted in all internal medicine inpatient rooms at Kustati Islamic General Hospital Surakarta. The population of this study were all non-hemorrhagic stroke patients. This study used purposive sampling technique obtained as many as 35 patients. The instruments used to measure muscle strength are MMT (Manual Muscle Testing) observation sheets and mirror therapy SOPs. The data analysis used was the Wilcoxon Signed Rank Test analysis test. Results:The mean value of respondents' muscle strength before being given mirror therapy was 0.90 and after being given mirror therapy was 2.57. There is a difference in the mean value of muscle strength before and after by 1.67. Conclusion: Mirror Therapy can be used as one of the interventions that can be used by nurses in carrying out nursing care actions for stroke patients in increasing muscle strength. Keywords:Muscle strength; Mirror therapy; Non-haemorrhagic stroke patients.