因事是原因和目的的合称。文章以“为、为了、因、因为、由、由于”6个因事关联词为研究对象,对母语环境下越南初级汉语学习者因事关联词的混淆现象进行考察分析。以混淆频次超过2次、混淆率在10%以上为标准,确定了5对易混淆词。混淆集中在当用“因为”时却误用其他词语的情况。导致混淆现象的原因主要是学习者母语和目的语知识的双重影响。在此基础上提出了一些建议。 Because things are the reason and purpose of the combined. In this paper, we will investigate the confusion caused by Vietnamese related learners in primary school because of “6 reasons related words”. Confusion frequency of more than 2 times, the confusion rate of 10% or more as the standard, identified five pairs of confusing words. Confusion focused on the use of “because ” but misuse of other words. The causes of confusion are mainly the dual effects of learner’s mother tongue and target language knowledge. On this basis, some suggestions are put forward.