The quality of the Kabul river water fi om upstream of Warsak Dam to its confluence with the Indus has been investigated by measuring 15 physical and chemical parameters during low flow conditions between September 1992 and March 1993. These values have been compared with standard conditions required for the maintenance of fisheries and aquatic life. The Kabul river water showed high suspended solids which range between 10-800 mg L-1. Conductivity values were also high and a maximum value of 1415 was recorded below the Akbar tannery on the Naguman branch. High levels of ammonia, nitrites and nitrates existed in the Shah Alam branch and in the lower main river. Sulfide concentration were high over the whole stretch of the river.