Objective: Investigate the blood physiological and biochemical changes in the spontaneously developed type 2 diabetes mellitus (T2DM) animal model of the SHANXI MU colony inbred strain established by the research team in the preliminary stage. Methods: A cohort of spontaneously developed T2DM Chinese hamsters and normal hamsters, each comprising 10 individuals at 12 months of age, were selected for the study. Fasting blood samples were collected and analyzed using the Sysmex XT automated hematology analyzer and the Hitachi fully automatic biochemical analyzer to measure and statistically analyze 15 physiological parameters and 16 biochemical indicators in the blood. Results: Compared with the control group, WBC, RBC, PLT, HGB, ALT, AST, GLU, TC, TG and UA in diabetic group were significantly different(P < 0.05). Conclusion: The blood physiological and biochemical indexes of the Chinese hamster spontaneous T2DM model established by the research group in the early stage were detected, and the changes were in line with the trend of human T2DM incidence, which provided basic data for the application and application of the model.