Transportation equity is an important transport policy goal. Transportation equity can effectively reduce the vulnerable group social exclusion, realize social equity and justice, and promote the healthy development of the city. In order to correctly identify the influence mechanism of transportation equity under urbanization so as to improve the transportation equity of urbanization areas, the related research achievements of transportation equity are summarized and analyzed in this paper. The connotation of urban transportation equity has been summarized from horizontal equity and vertical equity. The measuring angles and evaluation methods have been summarized of horizontal equity and vertical equity. Then, the people have been categorized by income levels and physiological factors to identify people who are transport disadvantaged. From the travel cost, space exclusion to analyze the transportation equity issues faced by low-income groups. The results showed that the study of transportation equity needs to be improved from the following aspects:at first, improved the travel environment of urbanization areas population groups should be paid much attention in the connotation of transportation equity. Secondly, the evolution model of transportation equity under urbanization should be analyzed, and the measure methods of transportation equity should also be improved. At the same time, the spatial analysis method of transportation equity should be constructed. Transportation equity can be analyzed from economic cost accessibility. Lastly, strategies for improving transportation equity in urbanization areas should be concerned, and operability optimization methods should be proposed.