This paper aims to examine the interactivity of replies for debate in the Internet and to discuss the textlinguistical characteristics of replies for debate. Internet Replies have some features that are different from the text in the real world. Likewise, replies for debate in the Internet have several properties that distinguish themselves from the debate text in real world: dependance on text, public as well as private, multi-way interactive, instantaneous and non-instantaneous communication, etc. Interactivity is an important feature which produces the new text sort, internet replies. To investigate the interactivity of replies for debate, it is classified into three categories by the level of interactivity: one-way, reactive, interactive. The replies for debate in the Internet are new text sort that satisfies people`s desire to view the opinion of others and express their own opinions and feeling.
