a method of preparing a color toner by : a ) preparing an anionic polymer composite emulsion comprising wax with a wax particle and nanosilica as core by in situ emulsion polymerization ; b ) preparing a cationic polymer composite emulsion comprising colorant with a colorant and nanosilica as core by in situ emulsion polymerization ; c ) agglutinating the anionic polymer composite emulsion comprising wax and the cationic polymer composite emulsion comprising colorant ; and d ) filtering , washing , and drying the product obtained in c ). the color toner prepared by this method . the color toner has high development density , high resolution , low bottom ash , low waste rate , and low consumption , and is easy to recover and recycle .