Taking the exchange of information contents on the professional forum for logistics as the research object,the semantic processing technology was used to construct a comprehensive index for the logistics personnel's emotion,which reflects the busy degree of logistics personnel and the level of emotional state of a product.Meanwhile,the stock movements of a number of manufacturing enterprises of the products of a certain kind of industry were selected to synthesize a stock index,and the ability of the logistics personnel's emotion index to predict the stock movements trend of manufacturing enterprises was inspected by the empirical method.The results show that the fluctuation of sentiment index in some direction often comes out earlier in advance of 40 weeks than the fluctuation of the corresponding stock price index in the same direction.