Fecal contamination is a seriouse anviroun mental problem at angke river jakarta . A cross-sectional study was condukted during april-june 2007 and aim of the study is to assess the water quality of angke river by detection of ascaris lumbricoides eggs and the protozoan cysts. A total 24l water of angke river was colected from 8 samling locations consisted of kembangan/duri kosambi (upper reaches of river ) pesing polgar (lower reaches of river ) teluk gong (lower reaghes of river )pantai indah kapuk (estuariy) river mout left side of rever mouth left side of rever mouth right side of river mouth and auter side of river mouth.the water specimen was exsaminetd microsofeecally for A. lumbricoides eggs and protosoan cysts using aconcentrated tehnique .of 8 locations 4 lokations (50% 4/8) kembangan / duri kosambi teluk gong pantai indah kapuk and left side of river mouth were positive for A.lumbricoides eggs and 2 locations (25% /8) kembangan /duri kosambi and pesing polgar positive for antamoeba histolytica cysts ofrall 60 A. lumbricoides eggs and 2E.histolytica cysts were found in 24 L water specimens. Among sumpling locations the most number of A. lumbricoides eggs where found at eastuariy.the water of angke river . Jakarta has been contaminated by human feces contained A. lumbricoides eggs and E. histolitica cysts.the water was unsafe for drinking water.