The fluctuation of tourist flow during peak season and off-season is an important factor that restricts the healthy and stable development of the scenic spot. The over-centralized traffic has great pressure on the resource management and environmental protection of the spot, and seriously affects the tourists’ experience. Aiming at this problem, through network data acquisition technology, we propose a new method of traffic monitoring technology based on travel online reviews. Simultaneously the subject extraction based on Word Embedding and the emotional classification of online comment based on emotional dictionary are put forward to obtain satisfaction evaluation monitoring about a theme. Finally, we use this method to realize the monitoring and evaluation of floating ticket system driven by the tourist flow. Through the comparison before and after the implementation of the floating system of the Emperor Qin's Terra-cotta Warriors, and the comparison between Sanya and Gulangyu which have similar scenic spots, the visualization results show that the floating ticket system has advantage of stabilizing the flow of people and improve visitors’ experience. This method proposed in this paper can help the decision makers to understand the operation of the scenic area and promote the floating system of inspection, and provide fundamental rules for the implementation of the ticket floating system.