This study was carried out in order to investigate the compressional deformation of cut-pile carpet. The results are summarized as follows; 1) Pile density being constant, as pile height increases compressional load decreases and pile height being constant, compressional load increases as pile density increases. 2) There is non-linear relationship between the compressional deformation and the load. Linear relationship can be obtained by In-ln plotting of the ratio of load and time. 3) The equation for the relation between the load and pile height is 4) Though the time dependence of compressional deformation exists, relaxation time is very short.