This paper, based on a case study on Poyang lake eco-economic district, establishes urban rural coordinated development index system and uses GIS and spatial counting model to measure the spatial and temporal evolution of urban rural areas coordinated development. The urban economic development was low in Jiujiang, Pengze,Wuning and Yongxiu in 2005, but changed to middle to high in Nanchang, Jiujiang, Xinyu, Jingdezhen, Fuliang and Gaoan in 2015. The rural economy is higher in suburb. The spatial coordination is not even, medium to low in Wuning, Ruichang, Dean and Hukou in 2005, higher to medium in Xinjian, Gaoan, Jinxian and Fengcheng in 2015. In 2005, 2010, and 2015, in Boyang's 31 counties, those negatively relative to their vicinities are 16, 17 and 21, all higher than those positively, 15, 14 and 10, not an outstanding spatial dependence. Indicated by spatial counting model, informatization and regional economy promote the urban rural coordinated development, but social consumption and industrialization do the contrast, traffic location, employee income and investment play little influence.