Embodiment in spatial cognition means the influence of one's body into their own cognition. It was hypothesized that spatial perspective-taking and mental rotation are heterogeneous systems ofembodiment, with the former characterized by the coincidence of body representation and somatic sensation, and the latter by the ability to mentally visualize the objects in relation to one's own body. To verify this hypothesis, either a spatial perspective-taking task or a mental rotation task waspresented to 30 university students in both stable and unstable conditions. There was a significant difference between these two conditions in the spatial perspective-taking task, with participants responding faster in the unstable condition. Furthermore, for the spatial perspective-taking task,there was a positive correlation between the discrepancy in response times between the stable and unstable conditions, and response times on the Controllability of Motor Imagery test, while there was a negative correlation for the mental rotation task. These results introduce two kinds of hypotheses, and showed that it was necessary to consider spatial cognition in a framework of embodiment.