Based on the theories of word order typology, this study intends to establish the system of adpositionsfrom Chinese and Koreanin terms of typological parametersbyexamining and comparing their syntactic and semantic functions. Many Chinese prepositions and Koreangrammaticalauxiliaries areadposition universals in preposition-based argument structure for leveragingsubject and predicate relationship. Chinese has an increasing number of prepositions, postpositions and circumpositionsina semi-open state, but Korean has a relatively small and stable number of postpositions in a semi-closed form.Despite the discrepancy ofnumbers and types between the two languages, Chinese preposition and Korean postposition are congenial pairs from a typological perspective,indicating the contrast of adpositions between SVO and SOV languages,given that both languages havemore adpositionsof situational and relational functionsthan of comparative, causal,subjective and predicative functions.