The invention discloses a health staple food flour special for diabetes patients, which is prepared from full wheat flour taken as a raw material, and tartary buckwheat swelling powder, oat swelling powder, soybean protein powder, young oat powder, wheat gluten and stevia rebaudiana taken as accessories in certain proportion. The preparation method for the health staple food flour special for the diabetes patients comprises that: high-quality full wheat flour, the tartary buckwheat swelling powder, the oat swelling powder, the soybean protein powder, the young oat powder, the wheat gluten are firstly selected and baked respectively, weighted in proportion, mixed evenly, screened and packaged into a finished product. The health staple food flour special for the diabetes patients and the preparation method thereof have scientific formula and strong pertinency, change the current situation that more diseases are generated due to nutrition deficiency and physical condition deterioration caused by depending on the control of the staple food in the prior diabetic treatment, and provide a novel food therapy concept of sufficient staple food, balanced nutrition and systematic interference.