The　design　and　synthesis　of　porous　carbons　with　unique　structures　and　diverse　functionalities　as　CO2　adsorbents　constitute　a　challenging　and　intriguing　research　topic.　In　this　study,　the　synthesis　of　hollow　micro-mesoporous　nitrogen-doped　carbon　nanoparticles　(NPCS)　and　its　adsorption　of　CO2　were　investigated.　Highly　porous　nitrogen-doped　carbon　nanoparticles　were　successfully　synthesized　by　using　economically　available　resorcinol　and　formaldehyde　as　carbon　precursors,　with　N-(2-aminoethyl)-3-aminopropyltrimethoxysilane　(KH-792)　as　a　soft　template　and　silica　sol　as　a　hard　template.　The　hollow　nitrogen-doped　carbon　nanoparticles　exhibit　an　evident　microporous-mesoporous　structure　and　have　two　different　scales　of　mesopores　with　9　nm　and　12　nm,　respectively.　The　effects　of　various　synthetic　parameters　on　the　formation　of　hollow　nitrogen-doped　carbon　nanoparticles　were　analyzed.　The　hollow　nitrogen-doped　carbon　nanoparticles　exhibited　specific　surface　area　of　1090　to　1716　m(2)/g　and　nitrogen　content　of　2.83　to　5.28%.　At　273　K　and　1　bar,　the　experimental　results　demonstrated　the　positive　effects　of　the　enriched　pore　structure　and　nitrogen　doping　on　CO2　adsorption.　The　optimum　adsorption　capacity　of　activated　NPCS　(ANPCS)　was　5.11　mmol/g　with　excellent　CO2/N-2　selectivity　value　of　20.44　at　273　K　and　1　bar.　The　initial　heat　of　adsorption　value　for　ANPCS　was　30.90　KJ/mol.　Additionally,　the　hollow　nitrogen-doped　carbon　nanoparticles　retained　99.2%　of　the　initial　adsorbed　amount　after　5　cycles　of　adsorption.　The　excellent　adsorption　performance　of　the　material　can　be　ascribed　not　only　to　its　extensive　specific　surface　area　and　enriched　nitrogen　but　also　to　its　mesoporous　and　hollow　structure,　which　facilitates　rapid　CO2　transport.