The instrument insulation box (electric heating instrument insulation box, steam heating instrument insulation box) is a complete set of instrument on-site equipment integrated with transmitters, instrument valves and pipelines, and electrical accessories. It is an important protective, insulation, dust-proof, and waterproof equipment for on-site installation of instruments. It has the characteristics of high standardization, beautiful appearance, reasonable structure, diverse forms, sturdy and durable, and easy installation and operation. The instrument insulation box consists of components such as the box body and instrument installation bracket. The structure of the instrument insulation box is basically the same as that of the instrument protection box. The difference is that the instrument insulation box is also equipped with an electric heater, an electric tracing band or a steam heating device, and the shell is sandwiched with a foam insulation layer, a heat-resistant sponge insulation layer or a high-temperature asbestos insulation layer. The body material of the instrument insulation protection box includes fiberglass, stainless steel plates, etc., and embedded glass observation windows can be added to the box door.