The invention relates to a state acquisition device for electronic-type mutual inductor, including state sensor and case. The case is installed on the electronic-type mutual inductor. The state acquisition module, analog signal acquisition module and digital signal processing and communication module are set inside the case. The state sensor is used for connection with electronic-type mutual inductor and state acquisition module. Both state acquisition module and analog signal acquisition module connect the digital signal processing and communication module. The analog signal acquisition module is used for connection with electronic-type mutual inductor and the digital signal processing and communication module is used for connection with merge module. While real-time acquisition of current and voltage signals, on-line monitoring is performed for the operating state of electronic-type mutual inductor to send the current and voltage signals and operating state data to the merge module, so as to realize the comprehensive monitoring on operation of electronic-type mutual inductor and improve the reliability of operation of electronic-type mutual inductor. The device has simple framework and operation and can effectively reduce the cost.