The electrical property and shear strength of a single chain formed in silicone oil is studied under dc electrical field,which consists of small humidited glass spheres (diameter is 200—220μm).It is found that the current flowing through a static (no shear) single chain increases with the increase in electrical field strength.The current and the yield shear stress is almost independent of the number (3—5) of the glass spheres to form the chain.The measured average current density and yield shear stress of a single chain versus the field strength is fairly agreement with that predicted theoretically.