To evaluate the efficacy and toxicity of concurrent chemoradiotherapy (CCRT) regimen in stage II-III nasopharyngeal carcinoma (NPC) patients. Methods: A retrospective study on 53 patients stage II-III NPC who underwent IMRT with concurrent chemotherapy; follow-up between October, 2014 to July, 2023. Survival outcomes were assessed using the Kaplan–Meier curves. Results: The mean follow-up time was 55 months (13-106 months). At 1 month after CCRT, the complete and partial response rate were 90,6% and 9,4%, respectively. The 5-year locoregional-free survival (LRFS), distant metastasis-free survival (DMFS), disease-free survival (DFS), and overall survival (OS) rates were 100%, 91,4%, 91,4%, and 93.7%, respectively. Acute toxicities grade 3-4 occurred in hematologic (Leukopenia 11,3%) and hepatoxicity (15,1% grade 3; 1,9% grade 4). IMRT with concurrent chemotherapy is an effective therapy in stage II-III NPC treatment, with moderate toxicity in hematologic and hepatoxicity.