The context was discussed due to the deficiencies in the literature and current issue on this subject. The study aims to determine consumers' shopping habits with online auction services, specify the problems experienced in service quality, and create an innovative and time-saving service suitable for consumers by choosing their wishes and needs. This study is significant as it aims to comprehensively approach consumer-to-consumer auction systems and determine consumers' attitudes towards e-auction sites. Data were collected using the survey method, and the factor and Anova analysis were applied to the collected data. Consumers' opinions about auction sites were evaluated within the framework of factors such as "trust", "purchasing process", "competition", and "budget". According to aspect and Anova tests of consumers on consumer behaviour; it is revealed that "Trust" with P: 0.047 < 0.05 shows a significant difference depending on income, and "purchasing process" with P: 0.013 < 0.05 has a considerable difference depending on age, "competition" with P:0.032 <0.05 has a significant difference depending on gender, "budget" with P: 0.046 < 0.05 has a considerable difference depending on income and education (F: 3.422 -P: 0.031 <0.05).