In this paper, the middle phase microemulsion in the three- phase system of brine-microemulsion-oil was investigated under the electron microscope by using the freeze corrosion technique of liquid sample. The microstructure of the middle phase microemulsion was analyzed from the viewpoint of morphology and it was discussed using the colloid and interface theory.

Key words: MICROEMUSION, MESOPHASE, MICRO-STRUCTURE, ELECTRON MICROSCOPES, MORPHOLOGICAL ANALYSIS, THREE PHASE, SAMPLE PREPARATION