The utility model discloses a heating protective sleeve for environmental protection analysis. The utility model discloses a heating protective sleeve for environmental protection analysis. The heat preservation, insulation, waterproof and moistureproof capabilities are poor; the anti-loosening effect after installation is poor; the problem of inconvenience in use is solved, it comprises a wire, the bottom of the wire is connected with a flange. An outer pipe is fixed in the middle of the flange; the inner side of the outer pipe is sleeved with a heat preservation layer. Sealant is mounted between one end of the heat-insulating layer and one end of the middle of the flange; a glass fiber belt is arranged in the middle inside the insulating layer; a first mica layer is fixed on the inner side of the glass fiber belt; the utility model is advantageous in that the structure is simple, outer pipe fixed by fixing, facilitating external protection, through the use of the heat preservation layer, effective heat preservation is facilitated, heat loss is reduced, through the use of the first mica layer and the second mica layer, insulation is facilitated, through the use of the first polyimide film and the second polyimide film, insulation, water resistance and moisture resistance are facilitated, through components such as an anti-loose pad, looseness prevention after installation is facilitated, and use is more convenient.