Abstract: Fractal image coding in DCT domain is studied in this paper.Then a progressive image transmission sheme is presented.Because of the advantage of the fractal image coding in DCT domain,the progressive image transmission sheme is produced.The sheme has an iterative structure,and at each stage a fraction of the image information is transmitted.From the progressive transmission thought,a lossless image coding method is developed.Finally,the results show that the progressive image transmission sheme and the lossless image coding sheme are practical.