A volatile-agent containing structure is provided which is large in sectional area compared to the entire size, whereby a volatile agent can be volatilized at a sufficiently high rate, and of which the surface area that is brought into contact with the container is sufficiently small, whereby volatilization is not practically limited by the contact with the container and soling of the container is prevented. The volatile agent-containing structure is a three-dimensional structure formed from plural corrugated members formed by corrugating rod-shaped members. The corrugated members have their apexes joined together so as to cross each other. This three-dimensional structure is formed from a resin composition containing a volatile agent having volatility and kneaded in the resin so that the volatile agent can bleed onto and volatilize from the surface of the three-dimensional structure.