Objective The purpose of this article was to explore the clinical value of clinical nutrition diagnosis and treatment which was in the instruction of NCPM theory and the important role to solve the problem of clinical nutrition in treating disease. Methods We analyzed and summarized the typical cases that were treated using the theory of NCPM by clinical dietitians in our hospital. Results Clinical dietitians applied the theory of NCPM to guide clinical diagnosis and treatment work,and organizedthe clinical nutrition diagnosis and treatment clearly, indentified the clinical nutrition issues and around the issues they made and adjusted clinical treatment plan according to clinical nutrition diagnosis process, which increased the clinical curative effect,shortened period of treatment and reduced the patients' medical risk. Conclusion Clinical dietitiansorganizedNCPM theoretical knowledge with clinical establishment and implement effectively of clinical nutrition work process in hospital, practice, which contributed to the meamwhile whichhelp clinical doctors and clinical dietitians estabish the thought of clinical nutrition diagnosis and during the clinical nutrition diagnosis work which reflected improving the clinical curative effect, shortened period of treatment and reduced the patients' medical risk and improving the clinical outcome. Therefore it is important to popularize NCPM to carry out clinical diagnosis and treatment work.