本研究之目的在於以國立高雄大學學習者所提交之寫作（自由作文）資料為對象，針對其誤繆的樣態加以觀察，並分析其誤繆之原因。誤繆分析是按照文法項目做區分並測定其誤繆之頻度，研究結果顯示以助詞的誤繆頻度最高，其次為時態、連結語尾、用言活用、補助用言等順序。另誤繆之原因依不同之文法項目而有所不同，即便是同一文法項目中，深入研究後亦可發現出其多樣性。具體來說，有下述幾種原因：除了受母語使用習慣的干擾之外、學習者對於相關文法之意味、用法的理解不足以及學習目標外語－韓國語本身文法的複雜性等等所引起的過度類化、對其他文法項目的認識不足、對於語言本身的概念理解之不足、母語使用時之能力不足，或是單純的疏忽等。

This study explored the error analysis of Korean language learners in Taiwan and the reasons why the learners made grammatical errors. The participants were the Korean language learners at National University of Kaohsiung. The data were gathered from the Korean Language learners' free writings. The error analysis was examined by grammatical categories and error frequency. The finding indicated that the highest error frequency was the usage of particle. The following grammatical frequency errors were tense, conjunctive endings, verbs conjugate, and auxiliary verb in order. The reasons of making grammatical errors were different. Even though students made the same grammatical errors, the researcher found out that the reasons were diverse. The researcher concluded the following reasons why the learners made grammatical errors. First, students were interfered with the habitual usage of their mother tongue. Second, the learners did not have enough comprehension about the correct meaning and usage of Korean language. Third, the grammar of Korean language was complicated. The learners did not have enough Korean language proficiency, so they could not comprehend the grammatical concepts of the language. They can not switch Korean language and their mother tongue. Last, they made careless errors.