For companies, the cost of acquiring a new customer is several times the cost of retaining an existing customer. Furthermore, the purchasing power of an existing customer is usually more predominant than a new one. Therefore, more and more companies attempt to establish long-term relationships with customers in order to make them patronize again or do other useful behaviors. The concept of consumer-company identification (C-C identification) has been used to qualify the deep, meaningful, and long-term relationships between consumers and companies. This research analyzes the antecedents and consequences of C-C identification. We suggest that high identity distinctiveness and identity prestige may lead to high C-C identification. Also, high C-C identification should enhance consumers¡¦ repurchase intention and word-of-mouth (WOM). Our survey with questionnaire conducted to investigate and collect data is sent to the consumers who have shopping experience recently in department stores of Taiwan. The valid sample with questionnaire returned is 294. We analyze the results by using structural equation modeling (SEM) and find that identity distinctiveness and identity prestige have a positive relationship with C-C identification separately. Moreover, C-C identification also has a positive effect to repurchase intention and WOM. Eventually, the managerial implications of this study may help corporate managers to ponder their marketing strategies or even improve their firms¡¦ performance.