Reasonable redevelopment model of urban low-utility land stock not only better saves the land resources but also enhances the land use efficiency, so as to boost the sustainable development of land sources and society as well as economy. Based on the analysis of the concept of urban low-utility land stock, by combining the general plan of Jiangbei District of Chongqing and the functional position of nine key projects, this paper classifies the nine key projects into four types from such four perspectives as business service, ecological pleasantly-living, industry cluster and characteristic mall, proposes advantageous-three model by optimizing business service, double-modification model by building ecological pleasantly-living cities, advantageous two-model by realizing industrial cluster, and two-relocation and three-optimization model for providing specific commercial and trade city in order to redevelop the low-utility urban land stock of the nine projects of Jiangbei District.