This paper has studied the electric capillary action of liquid metal under the electric field in NaOH aqueous solution,which will use the function of electric field force to drive the liquid metal and discuss the discipline between environment variables and electrical capillary action of liquid metal.The results of research would provide a certain theoretical basis and technical support about control system part of microelectromechanical.In the experiment,the materials that liquid Wood alloy and Ga-In alloy...