The invention discloses a carbon-coated metal sulfide electrode material, a preparation method and application thereof. The electrode material consists of hemisphere-like bilayer structure particles, the inner layer is a metal sulfide, and the outer layer is a carbon material. The hemisphere surface of the metal sulfide is coated by the carbon material, and the section is exposed. The general chemical formula of the metal sulfide is MSx, wherein M is one element from the fourth main group metal elements to the seventh main group metal elements, and x is greater than or equal to 1 and smaller than or equal to 3. The method includes the steps of: (1) covering a nanowire template with a metal sulfide precursor to form a uniformly and orderly dispersed nanoscale product; (2) covering the surface of the metal sulfide with a layer of uniform and dense carbon material film; and (3) removing the nanowire template so as to obtain the carbon-coated metal sulfide electrode material. The electrode material has stable structure and good cycle performance, and can acquire reversible capacity of more than 300mAh g<-1> in nonaqueous electrolyte sodium ion batteries.