Three interesting “Miscellaneous” categories are found in the poetry of the Wen Hsuan: the Miscellaneous Songs, Miscellaneous Poems, and Miscellaneous Imitative Poems. This research analyzes and explains the concepts, characteristics, principles of categorization, and themes of these works, thus contributing to the understanding of Six Dynasties literature. The Miscellaneous categories are heterogeneous not only in that they do not correspond to standard categories, but also in that the range of individual works within each category is quite diverse. Why are writings that differ so greatly from each other placed together? This research attempts to identify the nature of the incongruity between these works and other poems, either in style or in content. This incongruity explains why the poems were grouped together in the editorial process and termed “miscellaneous.” Nevertheless, common features can still be found among them: The Miscellaneous Songs are poems composed for singing; the Miscellaneous Poems comprises poems that cannot be sung; and the Miscellaneous Imitative Poems are poems composed through imitation. From a thematic perspective, each of the three categories has its own theme, but shares stylistic features with the other two categories. This is the peculiar feature of the Miscellaneous categories. By exploring the nature of these three categories, this paper provides an interesting perspective on the categorization of literature in terms of formal features and theme. In terms of theme, in the Miscellaneous Songs we find a narrative approach in poems such as “hero poems,” “state-building poems,” and “war poems.” In the Miscellaneous Poems, we find a lyrical approach in poems such as “love poems,” “friendship poems,” “kinship poems,” “narrow-sensed expressions of feeling poems,” “idyllic poems,” “landscape poems,” “hermit poems,” and “article poems” on the one hand, and a narrative approach in poems such as “history poems,” “frontier poems,” “war poems,” and “narrow-sensed narrative poems” on the other. The Miscellaneous Imitative Poems display a lyrical approach in poems such as “love poems,” “kinship poems,” “narrow-sensed expressions of feeling poems,” “article poems,” “landscape poems,” “wandering immortals poems,” “mystery poems,” and “idyllic poems,” and a narrative approach in poems such as “historic poems,” “hero poems,” “war poems,” and “narrow-sensed narrative poems.”