In the past, security systems were often seen as accessories added later in construction projects, and their energy-saving issues were easily overlooked. However, with the improvement of building energy consumption standards and considerations of operation and maintenance costs, this approach is no longer applicable. Modern intelligent buildings require security systems to be planned in coordination with building structures, electrical, HVAC, and other systems during the design phase. This means that in the early stages of architectural design, efficient wiring channels and reasonable equipment installation locations should be reserved, and energy-saving building materials should be selected to match the low-power operation of security equipment. At the same time, the selection of security systems should also be based on energy-saving standards, with priority given to equipment with high energy efficiency ratios. More importantly, this energy-saving design concept needs to run through the entire life cycle of the building, including post maintenance and upgrades, to ensure that the security system always operates in the optimal energy efficiency state, truly realizing the green concept of "cradle to cradle".