Abstract: With the national transportation scholars' further researches on the travel route choice, theoretical models are developed based on expected utility theory and prospect theory respectively.In the paper, the authors firstly give a brief analysis about the route choice models, and then establish the travel route choice models under uncertainty based on the expected utility theory and prospect theory respectively.With practical examples and empirical investigation, comparative analysis about the results based on the two theoretical models is conducted.And the shortcomings of the former are pointed out.The result obtained show that the latter one, the search idea of prospect theory is more appropriate to describing the personal travel decision behavior under the risk situation and uncertainty.