Objective：To observe the effect of radiotherapy dose on cervical esophageall carcinoma，and to analyze the prognostic factors of cervical esophageal carcinoma. Methods：A retrospective analysis was performed on 96 patients with cervical esophageal carcinoma who received three dimensional conformal radiation therapy or intensity-modulated radiation therapy from 2013 to 2018 according to inclusion criteria. All the patients are divided into three groups according to the radiation dose of gross tumor：the low-dose group（≤60 Gy），the medium-dose group（>60~<66 Gy）and the high-dose group（≥66 Gy）respectively. The clinical effect，acute adverse effects，and treatment failure mode were compared among three groups，and the prognostic factors of cervical esophageal carcinoma were analyzed. Results：The short-term efficacy was observed one month after radiotherapy，and the objective response rate was 66.7%，85.4%，and 85.7%，respectively. There was no statistical difference among three groups（P=0.114）. The univariate analysis showed that radiotherapy dose was the influencing factor of overall survival（P=0.031），progression-free survival（P=0.045）and local-regional failure-free survival（P=0.020），and there was no difference in the efficacy between the middle-dose group and the high-dose group，and all of them better than the low-dose group（P<0.05）. The independent prognostic factors of OS for cervical esophageal carcinoma are radiotherapy dose，synchronous chemotherapy，and invasion of adjacent organs. Conclusion：Radical chemoradiotherapy is effective for cervical esophageal cancer，and the medium dose，i.e. >60~<66 Gy，may be a more reasonable radiotherapy dose for cervical esophageal cancer. Radiotherapy dose，concurrent chemotherapy and invasion of adjacent organs are independent prognostic factors of OS.