No matter what marketing means, good product quality or excellent service is very important, and product quality is the core content. Traditional marketing means should pay attention to product quality, and word-of-mouth marketing relying on network platform is more virtual, so product quality can not be ignored. Good product quality is the foundation of good word of mouth. Network J spreads information quickly. When people transmit word-of-mouth information, the content can be either good or bad. Good reputation comes from the quality of products. However, bad word-of-mouth does great harm to enterprises because of the characteristics of the network. Therefore, it is very important to pay attention to the quality of products and provide high-quality services in online word-of-mouth communication.