This paper illustrates the definition of pun,especially its features, as well as the typical application of pun in English advertisements in order to emphasize its importance in daily usage both for advertisers and to target readers.It aims to demonstrate the importance of grasping the gist of pun in English advertisements. This paper shows the definition of pun, especially its features, as well as the typical application of pun in English advertisements in order to emphasize its importance in daily usage both for advertisers and target readers. Objective to demonstrate the importance of grasping the gist of pun in English advertisements.