Transition　metal　alloys　and　their　compounds　have　been　drafted　as　relatively　economic　and　high-activity　non-noble　metal　electrocatalysts　for　the　oxygen　reduction　reaction　(ORR).　However,　the　stability　of　catalysts　is　regarded　as　a　critical　issue　for　practical　application.　Here,　we　report　CoNi　alloy　nanoparticles　embedded　in　a　nitrogen-doped　graphite　carbon　nanotube　(CoNi@N-GCNT-FD)　electrocatalyst,　which　is　synthesized　from　metal　precursors　and　dicyandiamide　nanofibers　formed　by　freeze-drying　pretreatment.　The　electrocatalyst　exhibits　remarkable　ORR　performance　(a　positive　onset　potential　at　0.90　V　vs　reversible　hydrogen　electrode　(RHE),　a　half-wave　potential　at　0.84　V　vs　RHE,　and　a　high　limiting　current　density　(6.4　mA　cm(-2)))　in　an　alkaline　medium.　The　outstanding　ORR　catalytic　behavior　is　attributable　to　the　properties　with　a　high　specific　surface　area　and　the　collaborative　influence　between　a　CoNi　alloy　and　a　nanotube　protective　layer.　The　CoNi@N-GCNT-FD　also　displays　antimethanol　toxicity　and　good　stability　over　10,000　cycles,　attributed　to　the　unique　structure　of　N-GCNT　that　is　more　conducive　to　mass　transfer　and　protects　the　alloy　particles　from　corrosion　under　harsh　conditions.　This　simple　route　can　be　widely　used　to　prepare　other　alloy　electrocatalysts　with　relatively　economic　value　and　high　performance　in　power　conversion　and　stockpile　device　fields.