Coal　series　kaolinite　is　a　kind　of　rock　and　a　paragenetic　mineral　of　coal.　This　mineral　paragenesis　increases　the　complexity　of　combustion　of　coal　in　kaolinite.　Therefore,　it　is　necessary　to　study　its　combustion　characteristics,　which　is　of　positive　significance　to　make　good　use　of　coal　gangue　resource.　Taking　the　combustion　mechanism　of　coke　in　FCC　catalyst　as　reference,　an　unreaction　shrinking　core　model　for　fixed　carbon　combustion　reaction　in　kaolinite　particle　was　established　based　on　a　series　of　hypothesis.　The　combustion　of　fixed　carbon　in　coal　series　kaolinite　was　conducted　by　using　an　isothermal　thermogravimetric　method　in　air　atmosphere.　Results　clearly　show　that　the　control　step　of　fixed　carbon　combustion　process　below　700°C　is　the　interface　combustion　reaction.　By　means　of　the　unreaction　shrinking　core　model　analysis　and　calculation　of　unhomogeneous　particle　system,　the　combustion　kinetics　parameters　for　fixed　carbon　combustion　in　coal　series　kaolinite　are　obtained,　the　value　of　activation　energy　(E)　is　100.12kJ/mol,　and　the　frequency　factor　(A)　is　2.27　×　106s-1.