In order to break through the limitation of traditional experiment teaching,virtual reality technology method was integrated into the physical experiment teaching,and a virtual simulation operation platform of“Preparation of Liquid Crystal Cell and Measurement of Electro-Optic Effect”was constructed.The operation steps and methods of virtual experiment were introduced.At the same time,the experimental principle was analyzed and explained by the numerical simulation method,and the experimental contents were expanded and designed.The teaching practices showed that the experimental design was helpful to improve students’practical operation skills and stimulate their interest in learning and innovative thinking.