Abstract: This article is a review on the relationship of emotion and decision making. Early researches on decision making didn’t give any room to emotions. They were mostly the Mathematical models. Later, Kahneman and Tversky proposed a model called prospect theory, since then several models were proposed, all of them began to give emotion some roles to play in decision making. By the late nineties, with the development of neural science and social psychology, deep concern was given to emotions in several aspects of decision making.

Key words: Emotion, Decision making, Subjective expected utility theory, Subjective expected pleasure theory