Based on the perspective of industrial chain, this paper adopted the method of System Dynamics theory to describe the key role of digital technology investment in upstream energy production, midstream energy transmission and downstream energy consumption of the energy Internet. Based on the perspective of industrial chain, this paper adopted the method of System Dynamics theory to describe the key role of digital technology investment in upstream energy production, midstream energy transmission and downstream energy consumption of the energy Internet. The energy industry serves as the core driving force of the global economy, with a vast and complex industrial chain that encompasses the entire process from resource development and energy conversion to end-use applications. Driven by climate change, energy security, and technological innovation. This guide breaks down the upstream vs downstream supply chain framework through the lens of clean energy and natural resource development, with concrete examples from natural hydrogen exploration in North America. The upstream supply chain refers to all activities that move inputs toward. Energy Internet industry refers to a new industry model, including traditional energy and new energy, which relies on Internet technology and communication technology to achieve efficient allocation of energy and value added. Each segment plays a unique role in managing risk, capital costs, and market exposure, shaping investment opportunities.