The invention discloses an electrical safety helmet structure and a preparation method. The structure comprises a safety helmet body, the body comprises a resin shell body, the resin shell body is filled with a foam aluminum central core body, and a plurality of safety hamlet connecting holes are formed in the edge of the helmet body of the resin shell body; a lining is arranged on the inner sideof the resin shell body, and lining connecting holes are formed in the edge of the lining; the lining and the foam aluminum central core body are fixedly connected in sequence through safety helmet connecting holes and the lining connecting holes by using a connection fastener. By adopting the design technology of the combination of the foam aluminum central core body and resin, the electrical safety helmet structure is light in weight, high in strength, and excellent in shock resistance and vibration reducing performance, which guarantees the life safety of field operating workers to a largerextent.