Aim: The purpose of this study is to evaluate the efficacy of intra-articular ropivacaine for postoperative analgesia after arthroscopic procedures on the knee. Materials & methods: The current investigation was carried out at the department of anaesthesia with the intention of determining the efficacy of intra-articular Ropivacaine in providing postoperative analgesia in patients who had had arthroscopic knee surgeries. One hundred participants in all who were scheduled to have arthroscopic surgery on their knees participated in the study. Results: It was discovered that the patients in group A had a mean heart rate of 86.1, 96.5, 101.9, and 82.1 at postoperative 1 hour, postoperative 2 hours, postoperative 8 hours, and postoperative 12 hours and postoperative 24 hours, respectively. The patients in group B were found to have a mean heart rate of 76.4, 78.3, 79.4, 80.3, and 87.8 correspondingly at postoperative 1 hour, postoperative 2 hours, postoperative 8 hours, and postoperative 12 hours and postoperative 24 hours. When the two groups were statistically compared, it was found that the patients in the control group had a much larger variance in their heart rates than the patients in the study group. It was discovered that the patients in group 1 had mean VAS scores of 3.1, 4.0, 4.4, 3.4, and 3.6 accordingly at postoperative 1 hour, postoperative 2 hours, postoperative 8 hours, and postoperative 12 hours and postoperative 24 hours. These scores were obtained after surgery. At one hour, two hours, eight hours, twelve hours, and twenty-four hours after surgery, the patients in Group 2 had mean VAS scores of zero, 1.1, 1.6, 2.1, and 3.1, respectively, on the Visual Analog Scale. When the data was analysed statistically, they found some significant differences. Conclusion: we concluded that, based on the findings presented above, an intra-articular dosage of ropivacaine greatly increased the duration of postoperative analgesia without causing any negative side effects. Therefore, more research is strongly encouraged.