Abstract:With the rapid development of the economy and the fast increase of car ownership in China, the pressure of road traffic is increasing day by day and the traffic congestion is becoming more and more serious. In order to ease the traffic congestion, to improve the traffic capacity of road intersecting node and to meet the daily travelling demand of the residents, the interchange has become the essential component in a city. But the construction conditions and traffic composition of urban interchange are complicated, and the functional requirements are comprehensive. It is very important to select the type of interchange. Therefore, taking Liushi Road Interchange in Liujiang County Xingliu Road Phase III Extension Line Project as an example, some ideas of interchange set up at an urban atypical (abnormal) intersection are summarized, which hopes to provide the reference for the relevant projects.