A liquid storage container prevents quality degradation of liquid caused by evaporation of moisture in the liquid stored in a liquid storage chamber and contact between the liquid and air introduced into the liquid storage chamber. Quality is stably maintained for a long time. As ink contained in a liquid storage chamber is consumed, an atmosphere communicating path guides air into the liquid storage chamber from the outside. The atmosphere communicating path has a thin communicating path at an intermediate position. The thin communicating path is thinner than other portions and is capable of holding ink by a meniscus. An amount of ink sufficient for blocking the ink contained in the liquid storage chamber from the atmospheric air is held in the thin communicating path.