The invention discloses a maigre ham sausage and a preparation method thereof. The maigre ham sausage consists of the following raw materials: textured soybean proteins, ice water, vegetable oil, Konjac powder, albumen powder, modified starch, table salt, white granulated sugar, monosodium glutamate, I+G, maigre meat essence, whey proteins, powdered soy, caramel pigment and TBHQ (Tert-Butyl Hydroquinone). The preparation method comprises the following steps: rehydrating; dehydrating; threading; mixing; filling; cooking and sterilizing; and detecting and putting in a warehouse. The maigre ham sausage disclosed by the invention has the characteristics that by taking textured soybean proteins, Konjac powder, albumen powder and vegetable oil as main raw materials to replace animal meat, besides animal nutritional components, the maigre ham sausage further reduces the fat content of animal, so that the maigre ham sausage is more beneficial to human health; konjac has a certain health-care function, and no nitrite is added; the maigre ham sausage has the characteristics of fine and smooth meat, fresh and tender taste, convenience in carrying, simplicity in eating and long fresh and tender, and is deeply welcomed by massive consumers; the preparation process is simple in flow, the raw materials are cheaper, and the maigre ham sausage is easy to be produced on a large scale.