The present technology relates to an input control device, an input control method, and an operation system, which enable achievement of a highly flexible input operation without a burden on a user. A target point determination unit determines a target point to be a display reference in an operative field image in a display, on the basis of a user's line-of-sight position with respect to the operative field image displayed in the display and of a characteristic point detected in the operative field image. The present technology can be applied to an input device for an operation system.