The invention relates to an intravenous injection lipid emulsion having anti-inflammatory and anti-thrombosis functions as well as a preparation method and an application thereof. The lipid emulsion consists of anti-inflammatory lipid, lipid having an anti-platelet aggregation function, an emulsifier, polyhydric alcohol and other pharmaceutical accessories, wherein the anti-inflammatory lipid is lipid which can form timnodonic acid or butyric acid through metabolism in vivo; and the lipid having an anti-platelet aggregation function is lipid which can form docosapentaenoic acid through metabolism in vivo. On one hand, the lipid emulsion disclosed by the invention can effectively relieve inflammatory reaction in patients, and can significantly reduce platelet aggregation and reduce the risk of high-risk thrombosis on the other hand. In addition, by virtue of reasonable lipid composition, the lipid emulsion can improve metabolism rate of fatty acid lipid and accelerate energy supply.