Abstract::“Ecological red line”,as an innovative measure to implement ecological integrity protection in China"s space environment,there are many restrictive factors in its landing.The detailed performances are: indistinct definition,the absence of the legal system,demarcation dispute,multiple management leading to the overlap of red line,the faultiness of the relative systems of ecological compensation and performance appraisal and so on,etc,which cause red line difficulty of landing.In the future to improve the system,should be under the guidance of the institutional arrangements in line with the overall characteristics of the ecological,the specific measures include: under the scientific and technological means to distinguish ecological function supervision,on the basis of system of rational index and correction of social investigation,use the scientific calculation model to calculate the red line area.Then,through promulgating national and local special legislation to protect the line ,conducting classification and gradation control measures to care the lines,setting up the ecological compensation,performance appraisal, public participation and three-dimensional space monitoring system and so on to defend the line,only in this way can we ensure the ecological red line’s “Stroke well,keep in good condition”.To achieve the goal of building ecological civilization.