Abstract: The present invention provides a method for the preparation of shell-core type carbon-coated metal sulfide nanocomposite particles, and the nanocomposite particles obtained are used as anode materials for lithium-ion batteries in the field of lithium-ion batteries. A certain proportion of substances containing carbon source and inert gas is added in the automatic controlled DC arc metal nanopowder production equipment to evaporate the metal raw materials to obtain the carbon covered metal nanoparticle precursors; then the precursors are mixed with sulfur powder and put into the high pressure sealed reactor for heat treatment to obtain the carbon covered metal sulfide nanocomposite, and the carbon covered iron sulfide powder nanocomposite material is used as the active material to make lithium-ion electrode sheet. The advantage of the present invention is that the carbon covered iron and tin nanoparticles synthesized in situ are used as precursors, and the carbon covered iron sulfide and tin sulfide nanocomposite particles are obtained by low temperature sulfidation, which have high embedded/de-lithium capacity density and cycle stability, low raw material cost, simple process, can be prepared on a large scale, and suitable for industrial production requirements.