Abstract: Electrorheology is one of the newly developed research field duringthe recent years. The main topics discussed are, (1) The historical outline ofelectrorheology; (2) The clectrorheological fluids; (3) The mechanism ofelectrorheological effect; (4) The application of clcctrorheological fluid. Therecent research works on the electrorheological fluid and the mechanism ofclectrorheological effect arc cmphasized. The influential factors on ER effectare discussed mainly based on the prcsented ER mechanism. Compar...