Coarse and short fiber ends protruding above fabric surface mainly contribute to prickiness sensation of nexttoskin clothing, and the delectability of this sensation is usually based the justification on the critical buckling force of single fiber end as a fixedhinged slender rod under axial compression. The assumption that a fiber end prickling human skin is fixedhinged, however, can be too simplified to describe the real constraint conditions, both the end prickling human skin and the other end held in fabric. To clarify the role of different constraint conditions in the bending mechanical behavior of single fiber protruding fabric surface and prickling human skin, a coupling fiberskin model was established to simulate the prickling indentation into skin, where the end against human skin is constrainted by fiberskin friction and the other end held in fabric surface can rotate with a linear elastic stiffness,and then a parametric analysis on friction coefficient and rotation stiffness was performed. The results show that the elasticconstraint fiber end can subject to a higher axial compression force than the psychophysical threshold of perceived prickliness sensation, and most of published prickliness phenomenon can be explained on the basis of the established fiberskin model with friction and elastic constraints.