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<p>In order to explore whether working memory capacity of migraineurs was impaired or not, N-back Test was applied in 23 migraineurs and 25 healthy controls who were matched in sex, age, education, Verbal Fluency Test (VF), Digit Span Test (DS), Self-Rating Anxiety Scale (SAS) and Self-Rating Depression Scale (SDS) with migraineurs. It showed that when these migraineurs dealed with primary task of N-back Test (0-back), they showed higher accuracy rate (<em>t</em> = 2.627, <em>P</em> = 0.017) but slower reaction time (<em>t </em>= 1.483, <em>P </em>= 0.012). However, there were no significant differences between 2 groups when they dealed with advanced task of N-back Test (1-back: accuracy rate <em>t </em>= 1.399, <em>P</em> = 0.387, reaction time <em>t </em>= 1.069, <em>P</em> = 0.335; 2-back: accuracy rate <em>t</em> = 0.016, <em>P</em> = 0.209, reaction time<em> t</em> = 3.736, <em>P</em> = 0.777). As a result, working memory capacity of migraineurs was basically matched with healthy controls.</p><p> </p><p><strong>DOI: </strong>10.3969/j.issn.1672-6731.2015.01.014</p>