Three-dimensional (3D) printing technology has emerged as a critical tool in healthcare emergency responses, addressing challenges such as supply chain disruptions and resource constraints. This paper explores its role in on-demand production of medical equipment, including personal protective equipment (PPE) and patient-tailored devices for disaster response. The study also examines 3D printing applications in creating temporary medical facilities and mobile healthcare units, emphasizing its speed, adaptability, and potential for enhancing care in disaster-stricken and remote areas. Ethical and regulatory considerations are discussed, alongside the need for robust frameworks to ensure safety and equity. While 3D printing offers transformative possibilities for building resilient healthcare systems, challenges related to cost, regulation, and scalability must be addressed. Future research and collaboration are vital to fully realize its potential in global healthcare delivery.