Coordinate compound words, formed by combining 2 of the demonstratives morphemes Ko-So-A-Do, can be categorized into 4 types, namely, A-Ko type (e.g. achi-kochi), So-Ko type (e.g. sou-kou), Do-Ko type (e.g. doumo-koumo), and Do-So type (e.g. doko-soko). Here raises the questions: Why doesn’t Do-A type or A-So types exist? And why do they appear in such a Do>A>So>Ko linear order? In this paper, I cite examples of Ko-So-A-Do coordinate compound words, and examine the representations of demonstratives morphemes Ko-So-A-Do in those coordinate compound words. The results show that each of the demonstratives morphemes Ko-So-A-Do represents meaning based on its own fundamental characteristics, and that in each coordinate compound words the combined two demonstratives morphemes influence each other. It is also learnt that in every coordinate compound words the demonstrative morphemes with stronger influence is positioned in the left, which accords with the linear order.