Digital technology has emerged as a pivotal force driving transformation across industries. The conventional paradigm of relying on traditional rock mechanics theories and engineering experience to guide production and construction in underground engineering, such as coal mining, faces multiple challenges including poor reusability, low accuracy, and weak scalability. Critical bottlenecks, such as insufficient data utilization and suboptimal decision-making accuracy, severely hinder the coal industry's transition toward safer, smarter, more efficient, and greener development. Against this backdrop, the Deep Earth Science Academy team at the China Coal Research Institute has pioneered the research direction of digital rock mechanics, grounded in the "data + mechanics" concept. By leveraging the strengths of vast engineering data—which encapsulate complex real-world engineering principles—and extensively validated engineering experience and mechanical knowledge, the approach aims to address complex underground engineering problems without oversimplification, ultimately building modern mines characterized by intelligent, self-generating decision-making capabilities. Centered on digital rock mechanics, the Academy has specifically developed a large-scale foundational industrial platform for digital rock mechanics—the DigiTunnel System. The name "Earth Dive " embodies the vision of "advancing into the depths of the Earth." Currently, the system comprises four major product lines: "Earth Dive DeTection," "Earth Dive Digital Stone," "Earth Dive Brilliant Calculation," and "Earth Dive Inspiration," which respectively integrate advanced digital technologies into traditional rock mechanics research and underground engineering practices from the perspectives of structure, physical properties, stress, and decision-making. The platform provides more accurate and reliable operational decision-making support for complex deep-earth engineering, thereby enhancing the intelligence of deep underground projects.