Objective To investigate the association of nonalcoholic fatty liver disease with hypertriglyceridaemic wasit phenotype complicated with type 2 diabetes mellitus. Methods Base on whether plasma triglycerides concentra? tion≥1.7 mmol/L or not, waist circumference≥90 cm or not in men or≥85 cm or not in women, patients with type 2 diabe?tes mellitus (n=804) were divided into four groups:normal waist circumference with normal triglycerides, normal waist cir?cumference with hypertriglyceridemia, abdominal obesity with normal triglycerides and hypertriglyceridemic-waist pheno?type (HTWC). The four groups’clinical data were recorded. Body mass index (BMI), homeostasis model assessment insulin resistance (HOMA-IR) and nonalcoholic fatty liver disease fibrosis score (NAFLDFS) were calculated and the results were compared among four groups. Results BMI, waist circumference, systolic blood pressure, diastolic blood pressure, HOMA-IR, alanine aminotransferase, aspartate aminotransferase , γ-glutamyltransferase, serum uric acid,NAFLDFS and the inci?dence of NAFLD were all higher in the HTWC group compared to non-HTWC group (P<0.01). Logistic regression analysis revealed that besides BMI,γ-glutamyltransferase and serum uric acid,HTWC was also a risk factor for NAFLD in patients with type 2 diabetes mellitus(OR=1.986,95%CI:1.006-3.921). Conclusion HTWC is a risk factor for NAFLD in patients with type 2 diabetes mellitus. Screening and diagnosis of HTWC is helpful for reducing the occurrence of NAFLD and can slow its progress through controlling and interfering metabolic disturbance.