A number of pilot studies had shown high rate of complete resection after neoadjuvant chemotherapy alone for local advanced rectal cancer(LARC), but they did not increase the ratio of pathological complete response (pCR) which was associated with improvement of overall survival (OS). On the other hand,some clinical trials show that triple active cytotoxic agents (Fluorouracil, Oxaliplatin, Irinotecan, FOLFOXIRI) combined with cetuximab for EGFR wild type metastatic colorectal cancer had more effective than double agents.Therefore,a hypothesis is the FOLFOXIRI+Cetuximab as the neoadjuvant chemotherapy regimen might improve the patient's ratio of pCR.