A negative electrode for a lithium secondary battery comprising: a lithium metal layer; and a multilayer-structured protective layer formed on the lithium metal layer, wherein the protective layer includes a first protective layer including a composite material of carbon nanotube-ion conductive polymer; and a second protective layer including a composite material of carbon nanotube-electrically conductive polymer, wherein the ion conductive polymer includes one or more selected from polyethylene oxide, polyethylene glycol, polypropylene glycol, polypropylene oxide, polyethylene succinate, polyethylene adipate, polyethyleneimine, polyepichlorohydrin, polyβ-propiolactone, polyN-propylaziridine, polyethylene glycol diacrylate, polypropylene glycol diacrylate, polyethylene glycol dimethacrylate and polypropylene glycol dimethacrylate, and the electrically conductive polymer includes one or more selected from polyaniline, polyethylenedioxythiophene, polyphenylene vinylene, polyacetylene, poly(p-phenylene), polythiophene, poly(3-alkylthiophene), poly(3-alkoxythiophene), poly(crown ether thiophene), polypyrrole, poly(dialkyl-2,2'-bipyridine), polypyridine, polyalkylpyridine, poly(2,2'-bipyridine), poly(dialkyl-2,2'-bipyridine), polypyrimidine, polydihydrophenanthrene, polyquinoline, polyisoquinoline, poly(1,2,3-benzothiadiazole), poly(benzimidazole), poly(quinoxaline), poly(2,3-diarylquinoxaline), poly(1,5-naphthyridine), poly(1,3-cyclohexadiene), poly(anthraquinone), poly(Z-methylanthraquinone), poly(ferrocene), poly(6,6'-biquinoline), polyphenylene sulfide, polyphenylene vinylene, polyindole, polypyrene, polycarbazole, polyazulene, polyazepine, polyfluorene, polynaphthalene and poly3,4-ethylenedioxythiophene-polystyrene sulfonate. a lithium metal layer; and a multilayer-structured protective layer formed on the lithium metal layer, wherein the protective layer includes a first protective layer including a composite material of carbon nanotube-ion conductive polymer; and a second protective layer including a composite material of carbon nanotube-electrically conductive polymer, wherein the ion conductive polymer includes one or more selected from polyethylene oxide, polyethylene glycol, polypropylene glycol, polypropylene oxide, polyethylene succinate, polyethylene adipate, polyethyleneimine, polyepichlorohydrin, polyβ-propiolactone, polyN-propylaziridine, polyethylene glycol diacrylate, polypropylene glycol diacrylate, polyethylene glycol dimethacrylate and polypropylene glycol dimethacrylate, and the electrically conductive polymer includes one or more selected from polyaniline, polyethylenedioxythiophene, polyphenylene vinylene, polyacetylene, poly(p-phenylene), polythiophene, poly(3-alkylthiophene), poly(3-alkoxythiophene), poly(crown ether thiophene), polypyrrole, poly(dialkyl-2,2'-bipyridine), polypyridine, polyalkylpyridine, poly(2,2'-bipyridine), poly(dialkyl-2,2'-bipyridine), polypyrimidine, polydihydrophenanthrene, polyquinoline, polyisoquinoline, poly(1,2,3-benzothiadiazole), poly(benzimidazole), poly(quinoxaline), poly(2,3-diarylquinoxaline), poly(1,5-naphthyridine), poly(1,3-cyclohexadiene), poly(anthraquinone), poly(Z-methylanthraquinone), poly(ferrocene), poly(6,6'-biquinoline), polyphenylene sulfide, polyphenylene vinylene, polyindole, polypyrene, polycarbazole, polyazulene, polyazepine, polyfluorene, polynaphthalene and poly3,4-ethylenedioxythiophene-polystyrene sulfonate.