Concurrent chemoradiotherapy has been demonstrated a significant improvement in overall survival and disease-free survival according to Intergroup Trial 0116 in patients with gastric cancer after surgical resection. However,there are still many patients experiencing local recurrence or distant metastasis after adjuvant chemotherapy and concurrent chemoradiotherapy for locally advanced gastric cancer after resection. The optimal and standard regimen for adjuvant treatment has not been established in locally advanced gastric cancer yet.The investigators designed the trial to investigate the efficacy and safety of docetaxel plus cisplatin regimen as adjuvant chemotherapy and concurrent chemoradiotherapy regimen compared with classical FOLFOX6 regimen as adjuvant chemotherapy and 5-FU/CF as chemoradiotherapy in patients of locally advanced gastric cancer after D2 radical resection.