To provide a separator for a double layered capacitor with reduced internal resistance and excellent life duration.

There is provided a separator for the double layered capacitor having a melting point or a thermal decomposition temperature of 250 °C or more, and comprising a nonwoven cloth that contains zeolite and macromolecules whose fabric diameters are at least partially fibrillated into 1μm or less. The zeolite may be preferably an alumino-phosphate type.