This study intended to establish the influence of Supply chain management on performance of textile firms in Nairobi City County.. This study used descriptive research design. Both qualitative and quantitative research design was used to complement each other. The target population of this study was 120 respondents from the textile firms in Nairobi City County. This is the unit of analyzes. My unit of observation was the seven textile firms. For this study the unit of analysis comprised: two senior textile managers, two senior procurement officers and one senior officer from finance in each of the firms. The study opted to do a census survey since the firms were very few. A purposive random sampling technique was used to pick the right respondents. Pilot test of 10 % was done for the purpose of confirming reliability and validity of the research instruments: