The present invention provides a liquid-crystalline polymer composition comprising: a liquid-crystalline polymer and an aromatic polysulfone resin having oxygen-containing groups selected from among hydroxyl groups and oxyanion groups in an amount of 6X10-5 or more in number per 1 g of the polysulfone resin. The composition can suppress rise of specific gravity and reduction of heat resistance and can stably provide a molded article having excellent mechanical characteristics.