This paper proposes a Geometric Accurate Rectification method in remote sensing image based on reference image library.Firstly

uniformly distributed feature points are obtained in reference image using FAST （Features from Accelerated Segment Test） algorithm

the original matches of feature points are found based on the geographical information.Secondly

the highprecision matches of points are searched out in the input image through translation error removing

exact matching and RANSAC （Random Sample Consensus） gross error elimination.Finally

Delaunay triangulation is constructed for image transformation and resampling.It is verified by HJ Satellite experimental images

compared with traditional method

the accuracy of proposed method has been greatly improved.