The different pattern of recognition performance was found whether participants recognized 3-D objects by the same or different modalities as they learned (Ueda & Saiki, 2007). We investigated eye movements to estimate strategies used in within- and cross-modal 3-D object recognition. In the experiment, an unfamiliar 3-D object was presented visually for 2 seconds, followed by a recognition test. Participants were told the test modality before the study phase, during which their eye movements were recorded. For the recognition test, the test stimuli were presented either visually or haptically from various viewpoints, and participants responded as to whether or not it was the same as the object presented earlier. The patterns of eye movements during the learning phase were different depending on prespecified test modality. Participants focused on combination of parts when the test modality was also vision (intra-modal recognition), whereas they focused on the shape of distinct parts when the test modality was haptics (inter-modal recognition). These different patterns of eye movements may reflect different strategies in learning of 3-D objects, leading to different recognition performance.