Taking tourists in Tai’an City—an outstanding tourism city of China for example, this paper explored the influence of online comments(word-of-mouth effect) on tourists’ intention of purchasing services of accommodation facilities and restaurants through analyzing 502 valid questionnaires. Then measures and suggestions were proposed for tourist enterprises improving online word-of-mouth marketing. Taking tourists in Tai’an City-an outstanding tourism city of China for example, this paper explored the influence of online comments (word-of-mouth effect) on tourists’ intention of purchasing services of accommodation facilities and restaurants through analyzing 502 valid questionnaires Then measures and suggestions were proposed for tourist enterprises improving online word-of-mouth marketing.