A soft insert component having a rigid body portion in the vicinity of a marginal part of one surface side is insert molded in integration to a foamed molding. The foamed molding with the soft insert component includes a triple layered structure having a skin material, a core material, and a foamed layer. The skin material includes an insert component fixing portion onto which the soft insert component can be fixed. The core material includes a rigid body-supporting portion able to support the rigid body portion while resisting against a compression force applied to the soft insert component during foam molding, and the foamed layer is formed between the core material and a skin layer formed of the skin material and the soft insert component.