The material of fitness sword in the Republic of China is aluminum alloy or stainless steel. Because aluminum alloy or stainless steel is light and durable, it is suitable for making fitness swords. The fitness sword made of aluminum alloy or stainless steel will not be too heavy when it has a certain weight. If the sword is too light, such as wood, it will not achieve the effect of fitness, and it is too heavy for the elderly to complete the complete exercise. So the fitness sword of the Republic of China is made of aluminum alloy or stainless steel.