Abstract: Ambush marketing can be divided into association ambushes and intrusion ambushes.According to the range that the law regulated in different countries,the specific anti-ambush marketing legislation can be divided into three kinds,the legislation which only protect event mark,the legislation which widely regulating association ambushes and the legislation which regulating all kinds of ambushes.Because of the disparity of the legislation,the judicial settlements to the ambush marketing are also different.The reason of the disparity is that the different countries have different results when balancing the interest involving in the ambush marketing.The specific ambush marketing legislation has the impact on fundamental human rights like the freedom of speech,the freedom of trade and the property right.The fundamental human rights can only be limited by virtue of public interest protection.Before we make the anti-ambush marketing measure which will carry out in the 2022 Winter Olympics in China,we should carefully balance the interest.