The intelligent structure comprises the main structure , intelligent material and control system.The intelligent structure is a branch of integrated and crossover knowledge that is a new and high technology, which is developed from the end of eighties to the beginning of nineties. There will be many problems concerned in the intelligent structure to be studied such as the formulation of numerical model , the design of the control system , the optimization , etc. In this paper the static finite element model for the intelligent structure with a new ptezoelectric plate element is formulated with the minimum potential energy principle ,and a new finite element is presented for the bending plate element with piezoelectric sensors and actuators (S/ As). A numerical example is given to illustrate the validation of present method. 1t can be seen from the example that this method not only saves much memory and calculation tlme but increases the accuracy of solutions as well.