青少年時期的人際需求提高，且處於認同發展的關鍵期，友誼的互動經驗又對認同產生影響，而這影響隨著網路的蓬勃發展擴增。網路科技的發展，使人際間的互動無遠弗屆，加上使用的匿名性，讓青少年既能填補寂寞，又可避免羞怯的尷尬，因此，青少年認同與社群網路的使用實具深入探究的價值。有鑑於網路認同僅是一個籠統的概念，必須深入網路平台的社會脈絡，才能進一步探究青少年使用的影響，本研究乃分析先前相關研究，期能提供對此研究主題系統性的理解。本研究按網路使用認同情境與認同型態兩向度將認同研究進行分類，其中，網路情境分為線上與線下，認同型態則分為個人認同、社會認同、角色認同及自我認同，於此架構下歸納出八類認同研究取向做為未來發展此主題研究的基礎。

Adolescence increases in demand for interpersonal relationship and is the critical period of identity. The relationship effects their identity. The impact becomes even more significant as the internet flourished. Internet technology extends interpersonal contact both in time and space. Two saliences of internet use match features of adolescents. The anonymity avoids shyness and fills the loneliness. Internet is very attractive among youngsters. The topic deserves more researches. Internet identity is just a general idea. The exploration should consider social context to explore deeper the salience of identity. The research purpose is to provide systematic understanding of adolescent identity related to online social media use. Two dimensions categorizes identity researches. One is identity situations, the other is identity types. Identity situations are online or offline identity. Identity types are personal identity, social identity, role identity and ego identity. Each category of identity approach is revealed. The findings could provide some directions of future researches on this topic.