The research examines the types and causes of L2 writing anxiety Korean EFL learners experience and the influence of study abroad experience on L2 writing anxiety types. For the current study, a total of 128 university students majoring in different subjects responded to a questionnaire consisting of the three parts, including 1) the background questionnaire, 2) Second Language Writing Anxiety Inventory (SLWAI), and 3) Causes of Writing Anxiety Inventory (CWAI). In order to analyse the collected data, descriptive statistics and an independent sample t-test were employed. The results showed that the participants were more likely to face cognitive anxiety than somatic anxiety and avoidance behavior. Moreover, L2 learners’ previous study abroad experience had an impact on avoidance behavior more than cognitive anxiety and somatic anxiety. It was also found that main causes of L2 writing anxiety are learners’ linguistic difficulties, fear of teachers’ negative comments, and insufficient writing practice. Based on the findings, both implications for teaching English writing and suggestions for future research are discussed.