NOVELTY - An active energy ray hardening-type composition comprises component (A) having molecular weight of 1000 or less, component (B) having molecular weight of 3000 or more and component (C) having ethylenically unsaturated groups other than components (A) and (B). The component (A) has substituent having maleimide group and ethylenically unsaturated group other than maleimide. The component (B) contains urethane bond and ethylenically unsaturated group. An active energy ray is irradiated to the composition and semi-hardened, to obtain adhesive-cured film.    USE - Active energy ray hardening-type composition is used for manufacturing adhesive film or sheet for manufacturing optical film laminate (both claimed). Uses include but are not limited to liquid crystal display element, touch panel display element, electroluminescent display element, illumination, electronic paper display element, projection display element, field emission display element, plasma display element and solar cell.    ADVANTAGE - The active energy ray hardening-type composition has excellent adhesiveness. The adhesive film or sheet using the composition has excellent heat resistance. The optical film using the film has excellent productivity, durability, and is lightweight.    DETAILED DESCRIPTION - An active energy ray hardening-type composition comprises component (A) having molecular weight of 1000 or less, component (B) having molecular weight of 3000 or more and component (C) having ethylenically unsaturated groups other than components (A) and (B). The component (A) has substituent having maleimide group and ethylenically unsaturated group other than maleimide. The component (B) contains urethane bond and ethylenically unsaturated group. An active energy ray is irradiated to the active energy ray hardening-type composition and semi-hardened to obtain adhesive-cured film. An optical film or sheet is obtained using adhesive-cured film. INDEPENDENT CLAIMS are included for the following:    (1) active energy ray hardening-type adhesive film or sheet, which has adhesive cured film of the composition formed on optical film or sheet;    (2) manufacture of active energy ray hardening-type adhesive film or sheet, which involves coating the composition on optical film or sheet, irradiating active energy ray, semi-hardening and forming adhesive cured film; and    (3) manufacture of optical film laminate, which involves adhering active energy ray hardening-type adhesive film or sheet and optical film or sheet and irradiating active energy ray.