To provide a resin composition having improved transfer properties at molding of an optical lens or the like such as various kinds of lenses of a pickup lens, a collimator lens or the like for an optical system of an optical disk, hardly discolored when retained at high temperature and facilitating the molding.

The cyclic olefinic resin composition contains 0.01-10 pts. wt. saturated hydrocarbon having ≥50°C boiling point, e.g. a hydrogenation product or the like of a monomer used at the polymerization based on 100 pts. wt. cyclic olefinic polymer obtained by addition copolymerization of ethylene-tetracyclo[4.4.0.12, 5.17, 10]-3-dodecene or the like.