There is disclosed a hair cleansing composition having excellent detergency against oily dirts such as aged high-viscosity silicone compounds. The composition comprises the following components (a) to (d):(a): 0.05 to 15% by weight of a surfactant,(b): 0.5 to 40% by weight of an alcohol,(c): 0.1 to 25% by weight of water, and(d): 20 to 98% by weight of a liquid oil,wherein a viscosity ratio of a mixture of the components (a) to (c) to a mixture of oil components comprising component (d) is 1 or more.