This paper presents a novel multiresolution image decomposition and reconstruction method based on wavelet transform. Acccording to this method image is decomposed and transmitted in a coarse-to-fine way. The receiver could reconstruct finer and finer image during the course of image re-ceiving and obtain the original image finally. The experimental results show that this method could be applied to both intensity images and color images. Its computation complexity is low and it could solve the limited bandwidth problem. This method could also compress image data thanks to the advantages of wavelet transform.