The Autonomous FDIR Solution for Medium-Voltage Distribution Networks fully integrates modern information technologies such as cloud computing, big data, the Internet of Things (IoT), mobile internet, and artificial intelligence (AI). Based on advanced distribution network protection and control strategies featuring multi-dimensional fault analysis, rapid self-healing, seamless interoperability, and regional autonomy, the solution realizes collaborative interaction among “source, grid, load and storage.” Beyond achieving rapid fault isolation and self-healing in traditional distribution networks, it enables seamless grid connection of distributed generation, thereby improving renewable energy absorption capacity. Leveraging comprehensive equipment perception and intelligent diagnostic strategies, the solution implements full lifecycle management of distribution network equipment and establishes a panoramic digital operation and maintenance system for the distribution network. By employing high-precision sensing, low-power consumption, environmentally friendly insulating media and other technological means, it contributes to the realization of net-zero carbon emissions. While comprehensively enhancing the active perception and autonomous decision-making control capabilities of distribution network operation status, it creates an efficient, reliable, flexible, convenient, low-carbon, and environmentally friendly green distribution network, driving the achievement of the “dual carbon” goals.