To provide an oil absorptive communicating porous structure which can be comparatively inexpensively and easily molded, excels in liquid retention performance of the adsorbed oil content by the properties of the structure as such without using an oil absorbent for adsorbing the oil content and is easy to handle.

The oil absorptive communicating porous structure has an inside constituted as a communicating porous material obtained by communicating particulate hollow portions with one another, and the particulate hollow portions have an average maximum diameter of not greater than 100 m and are formed by dissolution of an ex post facto removable substance soluble in water, an enzyme, and an organic solvent, and the resin base material of the communicating porous material is a polyolefin resin or a biodegradable resin and the particulate hollow portions are open in the surface of the resin base material. Furthermore, activated carbon is sealed inside the particulate hollow portions as an adsorbent.