The Formosan group of the Austronesian family, predominantly spoken in Taiwan, encompasses a diverse range of languages, including Paiwan, Amis, Bunun, Rukai, Puyuma, Thau, Saisiyat, Pazeh, Atayal, Seediq, Tsou, Saaroa, Kanakanavu, Yami, Kavalan, Babuza, and Taokas. All languages within this group are agglutinative, characterized by well-developed affixes, morphological changes, and case markers that underpin their syntactic and semantic structures. This chapter examines the basic word order patterns and the word orders of nominal phrases of Formosan languages. Our analysis indicates that the basic word order types of these languages exhibit a relatively flexible nature, as shown in the order between verb and object (V + O), verb and manner adverb (AM + V), verb and adverb of negation (AN + V), adjective and degree adverb (ADJ + AD or AD + ADJ), adjective and adverb of negation (AN + ADJ), preposition (PREP + NP), and non-equality comparative construction (ADJ + S + ST). The word order patterns of nominal phrases include the order between noun and noun (N + N(head) or N(head) + N), noun and genitive (GEN + N or N + GEN), noun and adjective (ADJ + N), noun and demonstrative (DEM + N or N + DEM), noun and classifier structure (NUM + N, NUM + CLF + N, DEM + NUM + N or NUM + N + DEM), and noun and relative clause (N + RelV or RelV + N).