Abstract: The Response Evaluation Criteria in Solid Tumours(RECIST version 1.1) is not absolutely adapted for the evaluation of esophageal carcinoma which originates from a cavitary organ, further more, the conventional iconography technology could not effectively reflect the real shrink condition of tumor because of the edema during and at the end of radiotherapy; while, the functional image technologies, such as PET-CT,DWI, etc. could redeem the inadequacy because of their advantage of reflecting the change of function and metabolism. The article reviews the functional image technologies often used to evaluate the non-operation treatment response of esophageal carcinoma in recent years.