To provide a secondary sealant composition for a double glazing glass, which reduces the degradation of modulus to an external environment and has high durability when used as a sealant for the double glazing glass; and to provide the double glazing glass using the composition.

The secondary sealant composition for the double glazing glass comprises: a modified silicone polymer the main chain of which is an acrylic acid ester-based polymer; and a benzoic acid ester-based plasticizer.