Using　sodium　carbonate　as　the　catalyst,　the　CO2　gasification　kinetics　of　the　four　high　rank　anthracites　(Vad　=　2.69-4.35%)　was　investigated　by　isothermal　TGA　under　high　pressure.　When　the　pressure　was　>　2　MPa,　the　increase　of　pressure　had　no　effect　on　the　reaction　rate.　The　coal　conversion　as　a　function　of　reaction　time　was　measured　at　750°-950°C　and　at　2　MPa,　which　could　be　preferably　correlated　by　the　shrinking-core　model　(SCM).　According　to　the　reaction　rate　constant　determined　by　SCM,　the　reactivity　order　of　the　four　anthracites　was:　Yongan　Fengshai　coal　>　Yongan　Jiashai　coal　>　Yongding　coal　>　ShangJing　coal.　The　activation　energies,　ranging　from　157.21　to　185.89　kJ/mole,　were　obtained.　The　reaction　rate　constant,　activation　energy,　and　pre-exponential　factor　under　high　pressure　were　larger　than　those　of　the　gasification　in　CO2　at　1　atm.　At　850°C,　the　power　of　CO2　partial　pressure　for　Yongan　Jiashai　coal　was　0.34744,　which　agreed　well　with　the　literature.