本研究試圖從「語言社會學」及「認同傳播理論」來探討，台語戲劇收視行為、語文能力及認同落差，是否影響了閱聽人的語言態度。文中透過 Hecht 的認同傳播理論，理解認同建構與傳播之間的關係，其中以認同落差為研究主軸，探究個人-表演認同落差與個人-關係認同落差有無中介台與戲劇收視行為與台語態度。本研究透過網路線上問卷調查方式，獲得 260 份有效樣本。研究結果顯示台語戲劇收視行為顯著預測個人的台語態度;另外針對母語為台語的閱聽人方面，語言能力和台語戲劇收視行為預測了個人-表演以及個人-關係間的認同落差，也直接影響了個人台語態度。

 This study attempts to explore, from the perspective of " Sociolinguistics" and "Communication Theory of Identity ", whether Taiwanese drama viewing behavior, language ability, and identity gaps affect audience' language attitudes. This article uses Hecht's “Communication Theory of Identity” to understand the relationship between identity construction and communication. Taking the identity gap as the main research axis, it explores whether the personal-performance identity gap and the personal-relational identity gap have intermediaries, drama viewing behaviors and Taiwanese attitudes. In this study, 260 valid samples were obtained through online questionnaire survey. The results of the study show that Taiwanese drama viewing behavior significantly predicts individual Taiwanese attitudes; in addition, for native Taiwanese readers, language ability and Taiwanese drama viewing behavior predict the individual-performance and personal-relationship gaps. It also directly affects personal Taiwanese attitudes. Keywords: sociology of language, identity communication theory, national language, language.