The invention relates to an intacted protein and short peptide compound type special-dietary nutritional emulsion for clinic patients. The nutritional emulsion is prepared from the following raw materials in parts by mass: 1-3 parts of sodium caseinate, 0.5-2 parts of lactalbumin hydrolysate, 0.5-1.5 parts of soybean peptide, 0.1-0.4 part of marine collagen peptide, 1-3 parts of peanut oil, 1-3 parts of medium chain triglyceride, 1-3 parts of sucrose, 1-3 parts of maltodextrin, 0.2-0.6 part of inulin, 0.2-0.4 part of polydextrose, 0.01-0.02 part of compound vitamins, 0.03-0.07 part of compound mineral substances, 0.05-0.15 parts of sucrose fatty acid ester, 0.05-0.15 part of distilled glycerin monostearate, 0.1-0.2 part of carboxymethylcellulose, 0.02-0.08 part of xanthan gum, 0.01-0.04 part of sodium alginate and 80-90 parts of water. The invention further discloses a preparation method of the special-dietary emulsion. The nutritional emulsion is good in stability and rich in nutrition and has the advantages that the malnutrition conditions of the clinic patients can be effectively improved on the base of reducing the medical cost.