ObjectiveTo explore the impact of the preoperative nutritional status on quality of life of colorectal cancer patients. MethodsIn this study, patients diagnosed definitely as colorectal cancer were enrolled from September 2012 to December 2012 in this hospital.NRS-2002 was used to assess the preoperative nutritional status, and QLQ-C30 was used to assess the quality of life. ResultsForty-four patients were enrolled in this study and divided into two groups based on NRS-2002 preoperative nutritional status evaluation scores:mild nutritional risk group had 27 patients who got 1 point, and moderate-severe nutritional risk group had 17 patients who got 2 point or over it.Patients in moderate-severe nutritional risk group were significantly older than the mild nutritional risk group (P=0.001), but there were no statistical differences between the two groups in gender (P=0.718), TNM stage (P=0.302), differentiation degree (P=0.564), preoperative medical complications (P=0.070), postoperative complications[NS (not significant)], and stoma (P=0.786).There were no statistical differences between the two groups in quality of life, too (P > 0.05). ConclusionsThis study don't get the conclusion that there is any relationship between nutritional status and quality of life of the colorectal cancer patients.And maybe it is effected by the too small sample size and single time of accessing.Therefore, the further research by expanding sample size, using more kinds of assessment tools, and selecting different time to explore the impact of the preoperative nutritional status on quality of life of colorectal cancer patients are necessary.