The influenee of two different feeding ways of a two-step method of segmented polyether urethane (SPEU) solution polymerization on morphology of SPEU was inve-stigated in electron microscope．SPEU prepared by [PTMEG—MDT]-Extender reac-tion feeding way consists of two phases and the dispersion domains which are mainly made up of hard segments are small stick·shaped in morphology；electron diffraction pattern indicates that the domain is crystalline．SPEU prepared by [PTMEG—MDI]—Extender reaction feeding way also showed two-phase structure：The domains are-spherical in shape，and they are amorphous．