Urban greenland provides important socio-economic value and performs ecological functions, and it also is an important measurement of the sustainable development of cities in ecology. Connectivity is one of major indicator for maintenance of ecological functions in landscape. The connectivity of greenland landscape in metropolitan region of Chongqing City was studied based on the theory and method of landscape ecology, combined with Landsat TM remote sensing image. The integral index of connectivity (IIC), probability of connectivity (PC) and the important values of patches in greenland landscape were computed by different distance thresholds, The most important patches were found from the greenland landscape used Geographic Information System (GIS). The results showed that the greenland landscape is consisted of few large patches and many small patches. The connectivity of greenland landscape in Chongqing City is not so well, which was directly related to the construction of the greenland landscape. The most important patches located in the main mountains in the research region. The values of large patches for Connectivity of greenland landscape are more than others size patches, we suggest that it will make great contribution to establish large patches in planning of greenland landscape. However, protecting small patches should be addressed. The better way, which to increase the greenland value in urban ecological and environment management is to increase the connectivity of patches, both small and large patches when planning greenland landscape in metropolitan region of Chongiqng City.