The　polymerization　of　the　inverse　microemulsions　composed　of　methyl　methacrylate,　acrylic　acid,　sodium　dodecyl　sulfate　and　water　was　monitored　by　refractometer,　conductometer　and　time-resolved　light　scattering　device.　The　results　showed　that　refractive　index,　conductivity　or　intensity　distribution　of　scattered　light　changed　along　with　polymerization,　and　different　processes　of　polymerization　could　be　identified.