The present invention relates to a method for preparing a carotenoid oil suspension with low viscosity and high fluidity. The method includes the steps of mixing carotenoid crystals with tetrahydrofuran, heating the resulting mixture to a reflux temperature of about 50˜70° C. under stirring, and filtering-the resulting solution to remove fat-soluble fibers. The resulting filtrate is then condensed to dryness, mixed with a ketone solvent, heated to a reflux temperature of about 60˜80° C., and filtered to remove non-soluble phospholipids. The filtrate obtained is condensed to a residue, and absolute alcohol is added to the residue, and then crystallized under stirring at room temperature. The resulting crystals are filtered and dried to-provide carotenoid crystals. The carotenoid crystals are ground and mixed with plant oils to provide a carotenoid oil suspension with low viscosity and high fluidity, which provides easy filling, for example, into capsules.