With regard to the recent interests in smart textiles,this research activity has been conducted with the aim of producing a pattern changing design on textiles. In order to fulfill the demands of such dynamic patterns a combination of conductive polymer and thermochromic pigments were used. The textile substrate was coated by conductive polymer dispersion(PEDOT:PSS) and it was followed with printing thermochromic pigments on the surface of coating. The driving force of such thermochromic reaction has to be provided by the heat generated from conductive layer due to the current of electricity passing through the conductive layer. These experiments were continued by changing the coating recipe in order to achieve the highest possible electrical resistance,which leads to the best initiation of thermochromic reactions.