Wang Yanhong was a Ming dynasty poet whose life is sparsely documented; public sources are limited, and his birth and death years, native place, and official career cannot be reliably established. His representative work, Yiyu ji (Collection of Doubtful Rain), survives and is the main basis for understanding his writing. Judging from the titles and style of his poems, he drew largely on everyday emotional matters and personal reflections, writing with delicate sensibilities and clear, graceful language, and skillfully creating subtle, lingering moods in short pieces—a tendency that reflects the late Ming literati's interest in feeling and tone. Though less celebrated than some famous contemporaries, his poems have drawn the attention of later anthologists and readers for their sincere emotion and fine imagery, and are regarded as a noteworthy case within the Ming lyric tradition. Yiyu ji is modest in length yet concentrates the author's care for rhythm and diction, offering concrete material for studying emotional expression and poetic fashion among literati in the mid-to-late Ming. Because historical records are scattered and lost, questions about his associates, teachers, and the dating of his works still await further investigation.