Abstract:Usual trace interpolation is achieved by using the dip angles of scanned reflection legs and making weighted summation along some dip angle directions Any-in-terval trace interpolation using SVD method,a new technique,is put forward,which includes the following steps: •Detect the main trend of reflection legs in seismic image by using image pro-cessing technique. •Make SVD analysis along this direction. •Finish the interpolation and reconstruction of the post-SVD characteristic vector matrix according to the requirements to produce a final interpolation section. Viewed from the theoretical and real results,the method has some advantages:fast computation,high accuracy,good interpolation effect and the desirable interpolation for sections of any group intervals.