The invention discloses a limited angle CT reconstruction method based on heavy weight anisotropic total variation. The method includes the steps that based on a CT imaging principle, a CT image reconstruction equation is established; all parameters are initialized; a data fidelity item and a heavy weight anisotropic total variation minimized item are solved iteratively until iteration stopping conditions are met. Through the method that the anisotropic conception is fused into heavy weight, the reconstruction restoration effect of a limited angle CT reconstruction algorithm is effectively improved, and a real CT image is better restored. Compared with experiments of an existing reconstruction method, it shows that the method not only can achieve the better reconstruction effect, but also consumes shorter time for reconstruction.