Venerable Master Hsing Yun (below Venerable Master), the founder of Fo Guang Shan Monastery, devoted his entire life to upholding the original intents of the Buddha and advocating for the practice of Humanistic Buddhism in this world. Particularly, he emphasized the collaboration of the Four Assemblies of monastic and laity—akin to the dual wheels of a carriage or the wings of a bird—to collectively shoulder the responsibility of propagating the Dharma for the benefit of all living beings. Regarding how to guide the public in practicing the Bodhisattva Path and becoming practitioners in this world, the Venerable Master, with delicate concern for the choices and turning points in people’s lives, constructed a platform in Humanistic Buddhism. Through the principle of "everyone aspiring to be a volunteer," he advocated the continuation of "being a volunteer's volunteer," eventually undertaking the practice of the Bodhisattva Path as a "Bodhisattva volunteer." This study, grounded in the aforementioned understanding, focuses on the principles and practices of Humanistic Buddhism's Bodhisattva Volunteerism. Venerable Master's establishment and development of the ideology and theoretical framework for the practice of Humanistic Buddhism primarily involve presenting Buddhist principles in a clear and accessible manner. This serves as an expedient entry point for guiding Buddhist cultivation. The main consideration is that the public may find reading Buddhist sutras challenging, leading to a sense of distance from the profound teachings. However, this does not imply a lack of understanding of the doctrinal background. Therefore, from the articles on Bodhisattva Volunteerism in the Complete Works of Venerable Master Hsing Yun, this study, centered on the exploration of the principles of practicing the Bodhisattva Path, attempts to sift through and summarize the relevant terminology quoted from the sutras. By retracing to the original texts, the aim is to find practical principles for guiding actual cultivation through the corresponding interpretative perspectives of both sources. This study reveals that the methods of conduct demonstrated for Mahayana practitioners in the Avatamsaka Sutra can serve as a framework for "Bodhisattva Volunteerism" in contemporary Humanistic Buddhist organizational operations. Therefore, this paper intends to delve into this discovery. This study reveals that the Venerable Master, with delicate concern for the choices and turning points in people’s lives, constructed a platform in Humanistic Buddhism. Initially, faith served as the foundation, guiding the practice of the Bodhisattva Path through volunteers and volunteers' volunteers. Subsequently, based on the framework of the three worthy levels, Venerable Master further developed the ideology and methods of Bodhisattva Volunteerism. This demonstrates that this ideology is rooted in Mahayana Buddhist sutras, unfolding a sequential Bodhisattva practice tailored for contemporary humanity and benefitting others. The practical principles of Bodhisattva Volunteerism, in accordance with the Humanistic Buddhist notion of "participating in worldly endeavors with a transcendental attitude," address the issues of Bodhisattva volunteer s