The invention discloses a field operation helmet which is characterized in that sound-proof earmuffs are arranged inside the helmet, an electronic clinical thermometer occultation band is embedded in the helmet, an interphone speaker and a micro LED anti-explosion flashlight are arranged outside the helmet, a photochromic ocular lens is adopted, and reflective materials and fluorescence materials are sprayed on a helmet body. The field operation helmet integrates multiple functions, namely, a use function, a comfortably wearing function, a head safety protection function, an illuminating function, a body temperature measuring function, a camera shooting function, a communication function, a sound recording function, an eye protection function and an ear protection function. An embedded type and an outside hung type are combined to form the assembly structure of all functional assemblies, convenience and simplicity are obviously displayed, and meanwhile complex functional combination is achieved. The field operation helmet has the advantages that the categories, the number and the weight of tools which are carried by engineering workers are reduced, complexity of achieving operation through a specific function is reduced, labor intensity of the workers is lowered, and labor productivity is improved.