Based on RS data and ground observation data,this paper compared the change of vegetation sequence in Beijing-Hebei eco-water source conservation forest region before and after the project by NDVI and implementation effect of engineering drawings. The results showed that: 1) From the analysis of the total vegetation index,the growth trend of vegetation kept increasing from 2009 to 2018,and the effect of vegetation restoration reached 17.6%. According to the situation of each county (district) in the project area,the vegetation index also showed an upward trend,especially in Guyuan,Chongli,Fengning and Chicheng Counties. 2) From the analysis of the project implementation effect,the significant proportion of the project effect in 2009-2018 was above 96%. The disturbed phenomenon was decreasing year by year,the overall project effect was good. The results of remote sensing monitoring of project effectiveness were in good agreement with the actual situation,and the accuracy was high.