 Pari gbolohun ti o tẹle: 2004 IIHF World U18 Championship Division I jẹ awọn idije hockey ice ti o wa labẹ awọn ọdun 18 ti o wa ni agbaye ti International Ice Hockey Federation. Awọn idije Ẹka I ṣe ipele keji ti idije ni awọn : 2004 IIHF World U18 Championships. Ìpínlẹ A wáyé láàrin 27 March àti 2 April 2004 ní Amstetten, Austria àti Ìpínlẹ B wáyé láàrin 29 March àti 4 April 2004 ní Asiago, Italy. Switzerland ati Germany gba awọn ẹgbẹ A ati ẹgbẹ B awọn idije lẹsẹsẹ ati ki o gba igbega si Ajumọṣe Ajumọṣe fun 2005 IIHF World U18 Championships. Nigba ti Romania pari kẹhin ni Ẹgbẹ A ati South Korea kẹhin ni Ẹgbẹ B ati pe wọn ti sọkalẹ si Ẹka II fun ọdun 2005. 