The invention relates to a multi-contact-finger contact state detection method of a conductive circuit of electrical equipment, belonging to a high-voltage test method of the electrical equipment. A large-capacity and high-voltage capacitor is used for charging, and a discharge process of the capacitor is controlled by a vacuum contactor, so that the stability of the discharge process is guaranteed; logical separation resistance data is calculated by mathematical poles confirmed by repeated experiments; an information processing module is used for processing the information at high speed; the waveforms in the whole change processes of voltage, current and resistance are displayed on a screen, so that diagnosis can be made by a tester according to the waveforms; the recorded information is further analyzed and processed by software provided by the device according to the need of work. The multi-contact finger contact state detection method has the advantages that a large-current shock test method is applied to a factory routine experiment, an equipment commissioning test and a routine experiment of an equipment manufacturer; portability and miniaturization are realized by impact test equipment; a contact finger contact state is judged by the voltage change on a contact resistor caused by the change of contract resistance of the contact resistor in the presence of a transient impact current.