The present invention provides a special organic compound mixed fertilizer for rosaceous grapes and a preparation method for the fertilizer, and belongs to the technical field of fertilizers. The fertilizer comprises the following raw material components: urea, calcium superphosphate, diammonium phosphate, potassium chloride, an organic fermentation material, agricultural rare earth, borax or boric acid, copper sulfate, zinc sulfate, magnesium sulfate, ferric nitrate, ammonium molybdate, compound sodium nitrophenolate, polyglutamic acid, and diatomaceous earth or kaolin, and the fertilizer is prepared through processes of uniform mixing, pulverization, pelletization, drying, sieving and the like. Compared with the prior art, the special organic compound mixed fertilizer for the rosaceous grapes provided by the present invention contains various nutrient elements, such as nitrogen, potassium, phosphorus, calcium, magnesium and boron, and organic components required in each grape growth process; the fertilizer is balanced in nutrition, and can fully meet the nutrient requirement required by grape growth, enhances the disease resistance and cold resistance of the grapes, improves the fruit quality, and achieves the purpose of increasing the production and income; and the fertilizer can loosen soil, has the ability of retaining water and fertilizers, is lasting in fertility, and is environmental-friendly.