Objective To investigate the value of enhanced CT in the diagnosis of preoperative staging of esophageal carcinoma and evaluation of the feasibility of resection. Methods 44 cases of patients with esophageal carcinoma were enrolled in the study. All patients were examined with enhanced CT and surgery and pathology. With the results of pathological examination as the basis, the accuracy rates of enhanced CT in the diagnosis of T and N stage of esophageal carcinoma were evaluated, and the consistency of the two methods in the diagnosis of tumor invasion and lymph node metastasis was analyzed. Results With the results of pathological examination as the gold standard, the accuracy rates of enhanced CT in the diagnosis of preoperative T stageand N stage of esophageal carcinoma were 70.5% (31/44) and 68.2% (30/44), respectively. The accuracy rates in diagnosis of esophageal carcinoma invasion and lymph node metastasis were 65.9% (29/44) and 68.2% (30/44), respectively. Conclusion Enhanced CT can be used to diagnose the preoperative stage of esophageal carcinoma and evaluate the feasibility of resection, which is conductive to evaluating the condition of patients and further treatment.