This study aimed to explore the potential of utilizing waste nano-barite in enhancing the properties of bitumen and asphalt mixture. The research also examined the effectiveness of waste barite powder as a filler in modifying asphalt mixture behavior. Asphalt mixture samples were prepared through wet mixing with barite modified bitumen and dry mixing with barite filler, followed by testing for Marshall Stability, Cantabro, resilience modulus, and rutting.The findings indicate that the addition of nanobarite to bitumen enhances the properties of bitumen. Furthermore, the performance of asphalt is enhanced by the inclusion of barite in both wet and dry mixing methods, as evidenced by improved Marshall Stability; for example, Marshall Stability in the dry state increases by increasing the barite content to 54.7%.Also, the amount of wear in wet mixing in the amount of 3% filler decreases with increasing barite by about 6%. In addition, the results of statistical analysis show that the improvement of asphalt mixture performance due to the addition of barite in dry, and wet mixing is significant. Utilizing waste nano-barite in bitumen and asphalt mixture improving the performance, sustainability, and energy efficiency. It optimizes raw material usage, reduces environmental impact, and improves cost-effectiveness compared to traditional additives such as polymers, crumb rubber, or calcium carbonate.