With the rapid development of the TV box industry and online media entertainment, the birth of OTT has changed the way people watch channels, regardless of the time or place, as long as there is a network, plus TV, mobile phone, tablet, computer, etc. Platform devices or OTT TV boxes can be viewed through the installation of the app. However, the OTT TV box brand is very popular in the market. Because the company currently has a small number of users, in order to analyze the evaluation and reputation of the TV box in the consumer market and select the most suitable strategy products, the marketing staff often conducts marketing questionnaires through the telephone to collect opinions or Use the web to find relevant information. This study will conduct a word-of-mouth analysis for TV boxes of various brands, search and analyze the articles related to TV boxes in the forum and the complete sentences that generate positive and negative comments of each brand TV box through the Chinese opinion mining system, and then present different brands in the same period through the report. The number of articles discussed in the TV box and the number of positive and negative evaluation articles, as the company's marketing staff to analyze the Internet word of mouth of each TV box brand, provide a reference for the company's business strategy.