In the sport of karate, there are punching movements that focus on the athlete's muscle strength. To get maximum punches, proper muscle training is needed, the muscles used for this punch movement are the biceps and triceps brachii. There is an innovative tool that can be used as an alternative training tool for karateka athletes, namely the push-up board tool which has been developed according to the needs of karate athletes. This research was carried out to find out the feasibility of the push-up board tool to help karate athletes train their biceps and triceps muscles, to find out the practicality of the push-up board tool in karate athletes' push-up training, to find out the effectiveness of the push-up board tool as an alternative push training up board. This research uses the Research and Development research and development method with the Analysis, Design, Development, Implementation, and Evaluation model. The data collection techniques used in this development research are direct observation and data analysis techniques using validity analysis techniques for the products produced and product trial analysis that has been produced in the development research. The results obtained in this research are an average feasibility of 80% based on tests by media experts, media practicality of 85.25%, and 85.5% effectiveness based on trials on respondents.