Without prior intensity information in input plane,one method using random binary phase modulation and iterative algorithm is adopted to reconstruct complex wave-front in Fresnel and Fraunhofer diffraction domains,respectively. Three or more diffraction patterns in Fresnel or Fraunhofer domains with different random binary phase masks are used to successfully retrieve the complex wave-front. The differences of the methods used in Fresnel or Fraunhofer diffraction domains are finally discussed in detail.