The invention discloses an improved BEMD image de-noising method. The method comprises: S1, a noisy image is set to be f and BEMD is carried out on the image f; S2, a noise variance of the noisy image is estimated; S3, a variance of a jth layer of BIMF coefficient of the noisy image is calculated; S4, variances of signal coefficients in all layers of BIMFs are estimated; S5, noise elimination estimation is carried out on all layers of BRMD coefficients based on a formula; and S6, all layers of BIMF coefficients are reconstructed after noise elimination to obtain a final de-noising image. During the de-noising process, the BEMD coefficient feature of the layer and the value of the BEMD coefficient of the father layer are both considered, so that noises can be eliminated well. And detailed information like an image edge and textures can be kept effectively.