The invention relates to an automatic construction method of an intelligent contactor dynamic model. A sub-model for solving speed and a sub-model for inversely solving current of a contactor based on the neural network are trained by introducing the neural network technology and collecting actual running data of the contactor, so that the automatic construction of a contactor dynamic model is achieved; on the basis, the integrated simulation technology is adopted, point-by-point closed-loop simulation of an intelligent control module and a dynamic simulation program of the contactor is conducted, so that the automatic construction of the intelligent contactor dynamic model is achieved. By means of the method, the automatic construction of the intelligent contactor dynamic model can be achieved, and the development period of the intelligent contactor can be shortened.