Urban development and construction has led to a series of problems,such as the deficiency of land resources,difficulty in old city renovation,and backward landscape construction,etc.Brownfield refers to the abandoned and polluted lands of industrial,commercial,or other uses,whose redevelopment can not only effectively stimulate the intensive utilization of urban lands and the growth of urban economy,but also improve the quality of the urban ecological environment.Considering that the research on brownfield redevelopment methodologies in China is still at its initial stage,the application of the theories of urban regeneration and landscape urbanism in brownfield redevelopment will be conducive to solving various urban problems and promoting brownfield land use values.This paper,based on an analysis on the theoretical connotations of urban regeneration and landscape urbanism and their infl uences on brownfi eld redevelopment,argues that the urban regeneration theory can serve as the“framework”while the landscape urbanism theory as“skeleton”of brownfi eld development,both of which can integrally form the“organic body of brownfi eld redevelopment.”It further puts forward fi ve primary principles for brownfi eld redevelopment which are elaborated through a case study on Changchun Tractor Factory. Urban development and construction has led to a series of problems, such as the deficiency of land resources, difficulty in old city renovation, and backward landscape construction, etc.Brownfield refers to the abandoned and polluted lands of industrial, commercial, or other uses, whose redevelopment can not only only substantially stimulate the intensive utilization of urban lands and the growth of urban economy but also improve the quality of the urban ecological environment. Cities of that research on brownfield redevelopment methodologies in China is still at its initial stage, the application of the theories of urban regeneration and landscape urbanism in brownfield redevelopment will be conducive to solving various urban problems and promoting brownfield land use values.This paper, based on an analysis on the theoretical connotations of urban regeneration and landscape urbanism and their infl uences on brownfi eld redevelopment, argues that the urban regeneration theory can serve as the “fra mework ”while the landscape urbanism theory as “ skeleton ”of brownfield eld development, both of which can form form the “ organic body of brownfield eld redevelopment. ”It further puts forward fi ve primary principles for brownfield redevelopment which are elaborated through a case study on Changchun Tractor Factory.