This study aimed to determine the effect of hemsball activity on balance, kinesiophobic attitudes, and frailty levels in older male individuals. The research was conducted as a parallel-group pre-test-post-test randomized controlled trial. The reporting of the study utilized the CONSORT 2017 extension evaluating non-pharmacological interventions. The study was conducted with 86 older male individuals using a parallel-group pre-test-post-test randomized controlled trial design. The hemsball activity was structured by the research team and lasted for eight weeks, three days a week, for 60 minutes each day. Data were collected using pre-tests planned before randomization, immediately after obtaining written consent from the individuals, and post-tests in the eighth week of the study. Data were collected using a Personal Information Form, the Berg Balance Scale, the Tampa Kinesiophobia Scale, and the Edmonton Frailty Scale. Data were analyzed using a generalized linear model. This research found that hemsball activity is an effective intervention in improving balance and reducing kinesiophobia and frailty in older male individuals. Through this research, a new type of intervention that improves balance and reduces kinesiophobia and frailty levels in older individuals has been added to the literature.