The invention relates to an L-
carnitine calcium fumarate and a preparation method and usages thereof. The L-
carnitine calcium fumarate is characterized by oral intake, stability and no-hygroscopicity, and has stronger and more functions of
nutrition and treatment, compared with corresponding internal salt and good water
solubility; the preparation method is: the
calcium furmarate is dissolved in the water and added with calcic alkali for reaction with the temperature increasing to 70 to 90 DEG C for 2 to 8 hours and then water is evaporated by reducing pressure. The
solid obtained by
drying is added into
ethanol and evenly mixed, with the L-
carnitine added for reaction with the temperature at 60 to 70 DEG C for 1 to 6 hours, then the mixture is put into a refrigerator for
refrigeration for 2 to 8 hours and the L-carnitine calcium fumarate is finally obtained by suction and
filtration; the composition containing the L-carnitine calcium fumarate can be made into one or more excipients acceptable on
pharmacology, particularly
solid and
liquid oral intake preparation, such as powdered
drug, granules, tablets, capsules, oral liquid, etc., is preferred and the
solid and
liquid oral intake preparation can be used for food /
nutrition additives for people, or feed additives for animals, including additives for
calcium supplement.