Chanel is a French luxury brandNot at the top but he’s a big part of the luxury brand. Our research direction mainly focuses on the influence of social media on consumer loyalty, because now with the progress of science and technology, the brand industry is involved in more and more marketing methods of major brands, social media is the most common marketing means with the most extensive dissemination, and consumers are the foundation of a brandso we start with this topic. This topic is divided through the combination of quantitative and qualitative directions and questionnaire is used to assist this question. Through the questionnaire, we come to the conclusion that most consumers still know the brand’s products through social media, social media marketing is very important for the product, and most customers have neutral loyalty to Chanel, but high trust in the brand.