To secure a good heat insulating property and hygroscopic property over a long period of time by adopting yarn containing a lyocell short fiber as a pile part of a pile blanket.

In a pile blanket having heat insulation and hygroscopicity yarn containing 30wt.% or more of lyocell short fiber is used as the material of a pile part. The short fiber to be used is cellulose fiber obtained by a wet or dry spinning method using as a spinning solution a cellulose solution prepared by dissolving cellulose in an organic solvent. The fiber has a normally round shape in section, very smooth surface and saw-tooth-shaped crimps. As the fiber one whose degree is 0.5 to 20 denier and whose number of crimps is 4 to 25pc./inch is preferable.