The utility model provides an installing sleeve structure for a sensor, wherein the upper cylinder of a sensor installing sleeve body (1) is provided with a pneumatic spanner connection hole (3) while the lower cylinder thereof is provided with a work hole (4); and a notch (2) is formed in the work hole (4) to the outer diameter thereof. The sensor installing sleeve structures with different sizes are selected according to the size standards of the sensors so as to dismount the sensors together with the pneumatic spanner; the installing sleeve structure is convenient and quick; the operating force of workers is eased; and the production efficiency is improved. The sensor installing sleeve structure selects steel bars with different diameters according to the different size standards of the sensors; according to the different size standards of the sensors, steel bar materials with different lengths are cut in a cutting manner; the steel bar materials are processed to the outline of the sleeve in a milling or digital milling manner; the pneumatic spanner connection holes, work holes and notches with different size standards are manufactured in a digital control cutting manner or digital milling manner; and after being processed, the sleeve structure is formed through tempering and galvanizing treatments.