Multiresolution analysis method in images is widely applied in signal filtering,image de-noising,fusion and edge detecting.This paper presents a novel way to implement multiresolution ana lysis.Absolute power comlementary high-pass and low-pass filters are designed by decompose the spectrum of the t ransmisson characteristic of all-phase system.In term of all-phase theory,all-phase wave packets with various analy sis and synthesis results can be easily derived by using different orthogonal transformation and base window.Finally a simulation test is given to verify that all-phase analysis filter in DFT domain can be used in multi-layer resolution of image and error from the recovered image by means of all-phase systhesis is as low as -40dB and more.This novel method will be more widely applied in the filed of image compression and adaptive de-nosing etc.