This paper investigated the actual parking situation along the rail transit Line No.1, rail transit travel of citizens, and vehicle speed at central and suburb areas. Besides, it adopted the method of qualitative and quantitative analysis to identify the feasibility of park and ride (P&R)by drawing on experience of both domestic and foreign urban construction. The research results show that Nanchang city would have basic P&R construction condition when the network is formed with two or three rail lines in the near future. Based on a case study in Changbei suburban area, this paper proposes that the method of disaggregate Logit model to predict the parking demand is practical and feasible. P&R construction land should be well reserved or controlled during the period of rail transit construction. Some concrete construction suggestions on P&R are put forward accordingly.