Master Hsing Yun has yielded fruitful results in writing of Humanistic Buddhism, many of which contain not only abundant Humanistic Buddhism thoughts but also rich poetic thoughts. Master Hsing Yun’s writings of Humanistic Buddhism have three characteristics—writing as life, writing as practicing Buddhism, and writing as promoting Buddhism. From the point of view of these characteristics, the poetic thoughts of Master Hsing Yun have their own uniqueness and value, among which there are four essentials—the significance of literature is “to serve others,” the function of literature is “to offer others joy,” the evaluation criterion of literature is “to convey ideas or feelings,” and the principle of literary creation is “to make others understand.” The poetic thoughts of Master Hsing Yun are rooted in and greatly influenced by Humanistic Buddhism thoughts, from principle of creation to evaluation criterion.