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This utility model discloses a lightning protection power cabinet for new energy applications, belonging to the field of power equipment technology. It includes an outer casing and an inner casing, with the inner casing suspended inside the outer casing. An outer door is rotatably connected to the side of the outer casing, and an inner door is located on the side of the outer door. Several nylon support blocks connect the outer and inner casings, and between the outer and inner doors. The outer and inner doors respectively cover the openings of the outer and inner casings. A connecting frame is installed inside the inner casing near its top. In this design, the outer and inner casings are suspended and separated by nylon support blocks, forming a non-conductive air layer between them. This prevents external lightning current from being directly conducted to the electrical components inside the inner casing. A surge protector is installed on the connecting frame at the top of the inner casing, near the input terminal of the electrical components. It can quickly respond to lightning overvoltages, promptly discharge surge energy, and ultimately provide lightning protection for the electrical components.