The given article dwells on the comparative analysis of the morphological characteristics of modal particles in Tajik and Chinese. Tajik data is primarily drawn from the novel entitled as “Ghulomon” by Sadriddin Aini, while Chinese examples are based on established grammatical descriptions and linguistic studies. The analysis highlights key morphological divergences stemming from the languages’ typological differences, such as the presence of enclitics and some derivational links in Tajik versus the prevalence of invariant, monosyllabic, character-based particles in Chinese, often functioning sentence-finally. Despite morphological disparities, functional parallels in expressing modal nuances are observed. The study contributes to comparative linguistics, typology, and the understanding of modality expression across divergent language families, underscoring how fundamental grammatical structures influence the morpho­logy of peripheral elements like modal particles.