The survey of the head louse infestation of primary school children in Inchon city was carried out in May 26-27, 1995. Total number of the children surveyed were 1,530. Four (0.5%) out of 768 boys were infested with nits or adults/nymphs of lice and 72 (9.4%) out of 762 girls were positive with those of lice. The infestation rate of lice for girls was 19 times higher than that of boys.