隨著筆記型電腦流行以及國內電信業者對3.5G無線上網服務的延伸，使得隨 時隨地都能上網的概念得到了落實，而且照相、錄影播放影音等功能，現在已經是 每支手機必備的多媒體配備。青少年對於這一波網路及通訊設備的發展，是否懂得 正確的使用資訊科技的便利性；而不是因此造成新興的青少年網路使用問題，相信 是許多家長及教師們所關心的。
近年來，國外對於網路霸凌的定義、動機、使用哪些網路媒介或通訊產品做霸 凌活動，有廣泛的研究。而臺灣對於網路霸凌的新興議題已開始重視，也陸續有一 些研究，值得我們深入討論。
據此，本文擬透過文獻閱讀與分析，逐一探討青少年網路霸凌行為。首先瞭解 網路霸凌的概念，針對國外研究整理出網路霸凌的行為及使用媒介，其次，以現有 的國內外研究為基礎，綜合提出適用的預防策略與建議，希望能提醒相關單位正視 青少年及其家長的資訊倫理不足。

With the ubiquity of the lightweight notebook and the extensive internet service provided by the 3.5G domestic telecommunication industry, the concept of accessing and surfing the internet anytime and anywhere has become practicable. In the meantime, the functions of mobile phones of taking pictures and recording sound and images have also become indispensable. With this network and communication revolution, many parents and teachers are concerned about whether teenagers benefit from the convenience of using information science and technology or not, rather than causing new problems in using the networks.
Today many overseas researchers have done studies on ”Cyber bullyingff and bullying activities using media，networks and mobile phones. Since quite a few studies in this field have been conducted in Taiwan, the purpose of this paper is to synthesize and analyze the behavior of teenager cyber bullies, according to the finding of current researches on cyber bullying in detail. Firstly, it will define the word ”cyber bully” based on foreign studies of cyber bullying and the media used by the bullies. Secondly, this paper will propose suggestions and recommendations based on existed studies abroad to bring out integrated and preventive strategies that can be applied in Taiwan and, furthermore, itfs to urge the related authorities concerned and the parents to face up to the situation.