The invention discloses a thin film solar steel helmet which comprises a steel helmet body. A thin film solar cell panel is arranged on the top of the steel helmet body. A dust cover is installed on the front side of the steel helmet body. Dust spectacles are installed on the dust cover. A storage battery is installed on one side of the steel helmet body, and a glare flashlight and an interphone are installed on the other side of the steel helmet body. An adjustable tying belt is arranged below the steel helmet body. Night-vision devices are arranged on the dust cover and located above the dust spectacles. According to the thin film solar steel helmet, the thin film solar cell panel is mounted on the steel helmet body, solar energy is converted into electric energy through the thin film solar cell panel, and the electric energy is stored in the storage battery.