The invention relates to the field of batteries and aims at providing a high-safety flexibly-packaged lithium-sulfur battery and an anode material thereof. The anode and cathode of the lithium-sulfur battery are respectively arranged at two sides of a membrane to form a sandwich structure, and the electrode material sides of the anode and the cathode face to the membrane; the cathode is a lithium metal sheet; and the anode is prepared through the steps of uniformly mixing and grinding an anode material, acetylene black and a binder, then, adding the mixture into N-methylpyrrolidone to prepare a pasty substance, then, coating the pasty substance on an aluminum membrane, drying in the shade, and carrying out compression molding. The using safety of the lithium-sulfur battery is greatly improved, the service efficiency of lithium permanganate can be favorably increased, and the permissible velocity and performance stability of the lithium-sulfur battery are greatly improved. The lithium-sulfur battery is rich in active substance source, low in cost, free of pollution and easy to prepare. The electrode material is low in cost, simple and easy in preparation process, beneficial to large-scale production and wide in application prospect.