The abstraet and complex nature of relativity and gravitaional waves makes their comprehensionquite challenging for students.A visualization-based teaching method utilizing the numerical relativity sofwareEinstein 'Toolkit can eliectively assist in the teaching of relativity and gravitational waves, By simulating thebinary black hole merger process and demonstrating the resulting gravitational waves , this approach significanthenhances students’ comprehension of complex physical concepts, boosts their enthusiasm for learning, andstimulates a spirit of seientifie inquiry,The high-preeision numerical simulations provided by Einstein Toolkiallow students to intuitively observe the dynamie changes in binary black hole mergers and the generation ofgravitationalwaves ,thereby fostering their scientifie literaey and practical skills.