Based on the corpus ( SECCL ) , the study mainly analyzed different repairs, appropriate repairs and error repairs as well as other sub-type self-repairs of 30 English majors’ oral performance in sto-ry-retelling task and conversation task in 2006 ETM-4 oral task to investigate the influence of task type on learners’ self-repair behaviour. Results show that task type significantly influences English majors’ self-repairs during oral production.To be more specific,there exists a significant difference in different repairs and error repairs between story-retelling task and conversation task.%本研究以“中国学生英语口语语料库”（ SECCL）为语料来源，主要围绕不同修正、恰当修正和错误修正等3种自我修正类型，对30名英语专业女生在完成2006年英语专业四级口试复述和交谈任务中的自我修正行为进行了研究。研究发现，任务类型对自我修正行为存在显著影响，不同修正与错误修正分别在复述和交谈两类任务中存在显著性差异。
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