The present disclosure provides a micron fish oil composition and a method for preparing the micron fish oil composition. The method includes mixing a composite plant colloid with a fish oil and subjecting to an emulsification treatment to obtain an emulsion； and homogenizing the emulsion at a pressure of 300 bar to 350 bar to obtain the micron fish oil composition. The present disclosure also provides a method for enhancing bioabsorbability and bioavailability in a subject, including administering to the subject in need thereof a food product including an effective amount of the micron fish oil composition.
