Thermosensitive shape memory polyurethane covered yarn

The utility model discloses a thermosensitive shape memory polyurethane covered yarn which comprises a central yarn and a wrap yarn coated outside the central yarn, the central yarn adopts a thermosensitive shape memory polyurethane filament, and the diameter ratio between the wrap yarn and the central yarn is 0.1 to 1.0. Compared with the covered yarn structure of other fibers, the thermosensitive shape memory polyurethane provided by the utility model has stronger fabric wrinkling prevention capability and better elasticity, is easy to be recovered to initiate form and can be widely used.