The embodiment of the invention relates to a carbon nanotube hard carbon composite negative electrode material with a core-shell structure and a preparation method and application. The size range of the carbon nanotube hard carbon composite negative electrode material is 1-50 mum, and the carbon nanotube hard carbon composite negative electrode material is composed of an inner core and a carbon coating layer coating the inner core; the inner core comprises a first phase and a second phase; the first phase is a hard carbon material prepared by taking one or a combination of several of glucose, cane sugar, polyvinylpyrrolidone, starch polyvinylidene fluoride, novolac epoxy resin or polyvinyl chloride as a carbonization precursor, the size range is 1-40 mum, and the Raman spectrum Id/Ig range is 0.7-0.9; the second phase is a carbon nanotube, and the size of the second phase is 1-50 nm; the carbon coating layer is prepared by a gas phase method, a liquid phase method or a solid phase method, and the Raman spectrum Id/Ig range is 0.7-1.3; in the carbon nanotube hard carbon composite negative electrode material, the mass fraction of the first phase to the second phase to the carbon coating layer is equal to (0, 100%) to (0, 60%) to (0, 40%).