Neoadjuvant chemoradiotherapy(Neo-CRT) plus surgery has been regarded as a standard of care for patients with resectable locally advanced oesophageal cancer. Many studies suggest that definitive Radiochemotherapy(CRT) has similar efficacy as neoadjuvant chemoradiotherapy plus surgery for esophageal cancers who respond to chemoradiation. Herein, a single center prospective randomized phase II clinical trial will be carried out to compare efficacy and safety of definitive radiochemotherapy versus neoadjuvant radiochemotherapy plus radical resection in patients who achieved clinical complete response(CCR) after neoadjuvant radiochemotherapy for stage II-III esophageal Cancer.