This essay will explore the ideology behind the 'terms' used when discussing national language/Mandarin/Chinese curriculum guidelines in Taiwan. Firstly, I will explain the short story of the adjustment made to the curriculum guidelines in 2003 and 2008 (or years 92 and 97 when using the ROC calendar) and the changes between them. Secondly, by reviewing the 'terms' applied to identify national language/Mandarin/Chinese in the development of the 9-year alignment curriculum, 1 will discover/unveil the presumptions and the ideology undemeath these 'terms'. Lastly, I wish the decision makers, when it comes to the making or changing of educational policy, would adhere to the principle of academic autonomy and consider the education system as the priority instead of following the pendulum of the attentions of the political parties.