A　novel　catalyst　was　synthesized　using　CNx　nanotube　(CNxNT)　converted　from　polypyrrole　nanotube　as　support　and　CeOx　as　co-catalyst.　The　as-prepared　Pt-CeOx/CNxNT　catalyst　showed　superior　ORR　activity　compared　to　Pt/CNxNT　and　commercial　Pt/C　catalyst,　which　is　attributed　to　the　existence　of　CeOx　pyridine-like　nitrogenin　support　and　the　unique　hollow　tube　nanostructure　of　CNxNT　support.　Moreover,　the　presence　of　CeOx　can　significantly　enhance　the　durability　for　both　Pt　nanoparticles　and　support.