[Objective] In order to reduce the negative impact of land consolidation on the ecological environment, and to strengthen the ecological conservation function of county land, this paper constructed an ecological network system.[Methods] The path cost module of ArcGIS software was used to generate the least path and to construct the network structure of the "node corridor matrix". Moreover, Fragstats 4.2 landscape pattern analysis and ArcGIS buffer analysis were used to analyze the ecological network index of landscape pattern and land use structure.[Results] (1) The results showed that constructing the key nodes with high ecosystem service value function can exhibit the green lung function of the garden completely. (2) Strengthening the construction of corridor and matrix can increase the landscape connectivity and can realize the optimization of the landscape function. (3) Based on the optimization of ecological connectivity, the number and quality of the existing ecological network patch can be improved significantly, and the diversity of biological species can be increased markedly.[Conclusion] The path cost module was used to integrate landscape patches into a relatively complete, stable and continuous ecological network that can make the ecological landscape spatial distribution in the area more reasonable, which can provide theoretical basis and technical support for ecological network construction of land remediation.