Intertemporal choices refer to decisions involving tradeoffs between costs and benefits at different times. Two types of models, namely, attribute-and alternative-based models, have been developed to account for the intertemporal choices of individuals.Although behavioral evidence favors attribute-based models, eye-tracking data have produced mixed evidence. Examining the causal link between eye gaze and intertemporal choice may help resolve the controversy in these two intertemporal models.This study then performs a gaze-contingent manipulation to direct the gaze time of the participants while they are choosing between two intertemporal options. The intertemporal choices of these participants were found to be biased toward a randomly determined target when their gazes were directed to the target attribute (Study 1, N = 45), but their choices were not biased when their gazes were directed to the target option (Study 2, N = 45). The gazed longer attribute also mediated the effect of gaze-contingent manipulation on intertemporal choice. These findings suggest a causal link between intertemporal choices and the gaze-contingent manipulation of the attribute-based gaze pattern and contribute to the theoretical understanding of the mechanisms and processes involved in making intertemporal choices.