In this article we considered that Chinese characters make word sets, construct Korean words, and also participate in the syntax/meaning structure. From this viewpoint of syntax/meaning structure activation we closely examined the functions of Chinese characters and classified them accordingly. Therefore in this article we will see Chinese characters as a part of the Korean language and view the function Chinese character words have in the whole system then analyze the structure and finally classify them by their according functions. In the Korean language, words are consisted of a unit of chinese character words, and these units also participate in the structure off a sentence(syntax). Morphemes fall into two major classes: foots and affixes. A root is the basic element in a word. Free roots are foots which can occur by themselves as full words. Bound roots are roots which can occur only in conjunction with one or more other morphemes. Affixes are morphemes that occur only in conjunction with a root or some combination of roots and other affixes. Stem is the part of a word to which an affix is attached. A root by itself may be a stem. Or a stem may consist of a root plus one or more affixes. There are monosyllabic morphemes and disyllabic, trisyllabic, polysyllabic morphemes in free roots, and in bond roots there are noun conjoined morphemes, verb conjoined morphemes, adjectives conjoined morphemes, and productive morphemes which can be used freely to form new words from the list of free and bound morphemes. There are three types of affixes: prefixes, suffixes, infixes, and stems. Affixes function in two main ways: as inflectional markers and as derivational markers. Derivational markers have a their own characteristics [+N, +V, +M, +R] Inflectional affixes: (a) declension for(pro)nouns: number, gender, case (b) conjugation for verbs: aspect, mood, voice, number, tense (c) comparatives for adjectives and adverbs Derivational affixes: (a) establish grammatical classfication: part of speech (b) change the grammatical class of a stem: from noun to verb [+M, +R] (c) change the subclassification of a stem: from noun to agent noun [+N, +V, +M, +R] Chinese characters are hard to define prefixes, and in infixes there are ‘-家, -師, -手, -的’ Complex form stems are part of a word but cannot take place in the syntax.