Today`s Korea is becoming a multi-cultural society with the increase in the number of immigrants for marriage and foreign laborers together with the increase in the population of the second generation of immigrant families. In particular, there has been a rapid increase in the number of female marriage immigrants in recent times, which gives rise to an urgent need for proper policies and concrete, realizable measures to help them settle into life in Korea. The main priority must be Korean language education. For this reason, the Korean government and self-governing local groups and civil groups have been the main providers of Korean language education for female marriage immigrants, but there is still a shortage of concrete discussion about the content and methods of the education. Therefore, in order co provide efficient measures for Korean language education for female marriage immigrants, it is necessary to analyze their usage of Korean language. In this study, a direction of vocabulary education for female marriage immigrants is suggested based on the analysis of vocabulary usage errors in the writings of female marriage immigrants in the intermediate classes of Korean language education. The vocabulary errors of female marriage immigrants are divided into three categories -replacement, omission and addition. Most of the errors are caused by replacement. Among the replacement error phenomenon, the morphological mistakes in vocabulary make up 83.2 percent of the total which is much more than the semantic errors. Among the morphological errors, there are many errors relating to orthography, and this result indicates the need co emphasize spelling education in the intermediate classes. Also, there is a lack of understanding of semantic relations among synonyms, a lack of understanding about word formation such as derivatives and compounds, an inappropriate use of honorific vocabulary and a lack of understanding about collocation based on co-occurrencerelation. Therefore, it is ascertained that educational measures on these points are especially needed.