This study aims to investigate the effect of information technology on quality performance. The research model has been proposed based on relationships among research variables and previous studies on information technology. Population was all of department’s managers and personnel of marketing and sale, manufacturing and quality control in Iran Khodro and SAIPA companies. To collect data, a field survey was performed on 128 people using convenience-sampling plan. Research hypotheses were tested by Pearson’s correlation and structural equation modeling. Data was analyzed using SPSS and AMOS software. Results indicated that information technology sources (electronic data exchange, computer-aided design and manufacturing, enterprise resource planning) has significant impact on quality performance.