Aimed at hardness of espial and complexity of technology in the experiment of dynamic systems, the electronic analog computer is employed to implement the transfer function and primitive operator of dynamic systems from viewpoint of control theory for the general equality between electricity and dynamics, in this way the dynamic experiment changes into electricity experiment and the ripe technology of electricity measure can be used in the simulation and experiment of dynamic systems. Based on the electronic analog computer, the electronic equivalent models of essential elements of dynamical systems are given, and the electronic equivalent analogue operation and electronic experimentation framework of typical dynamical systems are given too. The results of simulation and analog show that the method is simple and correct, and the scope of its application is wide.