Objective: To evaluate the value malnutrition-inflammation score(MIS) for the nutritional status in patients with maintenance hemodialysis.Methods: Eighty patients with maintenance hemodiaqlysis were selected in this study.MIS was used to access the nutritional status in these patients.At the same time,the laboratory indexes including serum albumin(ALB),transferrin(TRF),hemoglobin(Hb),serum creatinine(Scr),blood urea nitrogen(BUN),C-reactive protein(CRP),serum calcium(Ca) and phosphorus(P) were measured,and Kt/v,urea reduction ratio(URR) and protein catabolic rate(PCR) were calculated.The body composition was also measured by bioelectrical impedance analysis after postdialysis,including body weight(WT),body mass index(BMI),fat mass(FAT MASS),fat-free mass(FFM) and total body water(TBW).Results: The abnormal rates of these nutritional marker were: protein malnutrition(ALB1.8 mmol/L) 70.0%,respectively.All patients were mild or moderate malnutrition by MIS.MIS showed a significant correlation with WT,BMI,ALB,TRF,Hb and CRP(P﹤0.001,P