In order to analy se the deg ree of the sustainable development of the ecological construction, we choose some suitable indice and set up the index system.Then use the gray relational method to analyze the index system and calculate the gray relational grade and the gray relational coefficient.In accordance w ith the results,the standard and the t rend of the sustainable development have been measured.The sustainable development of the ecological region has been given the quantitative and the qualitative basis.With the suggestion brought forward,the goal of the sustainable development should be smoothly achieved.