Objective: Carriage rate of Neisseria Meningitidis is known to be very high in the group of university students and army population although the general carriage rate is about 10%. 60∼ 80% of carriage rate was reported in the army population. To gain current information about the nasopharyngeal carriage of Neisseria meningitidis, this study was carried out. Method: 391 recruits of Korean army were swabbed two times. 1st swab was taken on the day of beginning of the army training and 2nd was done 5 weeks later. Results: Overall carriage rate was 17.6%(69) at first swabs and raised to 21.7%(85) at the second. Of 69 isolates from 1st swabs, 4 serogroups including B, C, W135, E29 were identified and 39.1%(278) were done as non-groupable. Results of serogrouping 85 isolates from the 2nd swabs were same with the 1st examination. B, C, W135, E29, non-groupable were identified. Serogroup B account for 31%(22) of 1st isolates and 60%(51) of 2nd isolates. 17 positive results converted into negative at 2nd swab. Conclusion: The carriage rate of the army recruits was higher than normal population but didn't go up so high as reported. Only 4 goups which are likely to causes disease were identified. Duration of carriage should be evaluated in the following study with longer follow up.