The　reorganization　of　fumed　silica　gel　formed　in　sulphuric　acid　medium　after　being　broken　has　been　studied　using　rheological　measurements　including　thixotropy,　gelling　time,　and　gel　strength　determination　according　to　the　falling　rod　method.　The　original　gel　formed　by　fumed　silica　particles　was　also　studied　for　comparison.　The　results　showed　that　the　segments　yielded　after　the　original　gel　was　broken　can　reorganize　into　a　new　gel　although　its　ability　was　weaker　than　that　of　fresh　particles.　The　dispersed　size　of　silica　particles　influenced　both　the　formation　of　the　original　gel　and　the　reorganization　behavior.　The　smaller　silica　particles　favored　a　prolonged　gelling　time　but　yielded　a　gel　with　relatively　low　strength.　Comparatively,　the　tendency　to　reorganize　was　weaker　than　in　the　original　gel　formation.　The　standing　temperature　during　the　fresh　gel　formation　showed　less　of　an　effect　on　the　reorganization　process.