This thesis discusses “shuo wen jie zi” “ yu pian” “wu jing wen zi” “long kan shou jian” “si sheng pian hai” “zi hui” six dictionaries. First, giving a rough accout of background of each dictionary. Secondly, discussing and categorizing chinese radicals and its order that in each dictionary. Then finding the context of radicals evolution of six ditionaries. Finally, reviewing the develop of chinese radicals, making the method of ditionaries’ edition more faultless.