Abstract: In this study, two experiments were designed to explore the influence of temporal shift on event segmentation and situation model when event shift is disaccord with temporal shift with event segmentation paradigm and probe-recognize paradigm. In the first experiment, 36 university students were asked to read eight narrative stories. In the second experiment, 33 University students were asked to read eight narrative stories. The independent variables were the same as those in the first experiment. The dependent variable was the segment rate of the different points. According to the results from the two experiments, we find that in the temporal shift consistent with event shift condition, temporal shift causes the update of situation model; whereas in the temporal shift inconsistent with event shift condition, temporal shift don’t causes the update of situation model. To sum up, event is the core of situation model and temporal shift causes the update of situation unless it indexes event shift.