The invention discloses a high-performance vermicular graphite high-entropy alloy and a preparation method thereof. The excellent performance of vermicular graphite cast iron and a high-entropy alloy is combined, and excellent comprehensive performance is achieved. Compared with an FCC phase, a BCC or B2 phase in the vermicular graphite high-entropy alloy has high strength and hardness, and graphite is distributed in the interdendritic FCC phase; and meanwhile, the graphite has lubricity, vermicular graphite exists in the vermicular graphite high-entropy alloy, and the excellent comprehensive performance is achieved, that is, good compression plasticity, strength and wear resistance are achieved. Room-temperature compressive strength is larger than 2 GPa, the compression ratio is larger than 30%, the hardness value is larger than 350 HB, and the wear size is smaller than 0.04 mm<3>.