Automatic switching testing device and method for multi-channel resistance and insulation measurement

The invention relates to an automatic switching testing device and method for multi-channel resistance and insulation measurement. The device is used for automatically switching and measuring resistance or insulation of parallel devices to be tested and comprises a switching circuit, and a control unit, a resistance testing unit and an insulation testing unit which are connected with the switchingcircuit; the control unit is used for receiving measuring signals and outputting an on/off control instruction to the switching circuit according to the received measuring signals; the switching circuit controls any one or more of the parallel devices to be tested to be communicated with the resistance testing unit or the insulation testing unit according to the on/off control instruction so as to achieve resistance measurement or insulation measurement of the devices to be tested communicated with the resistance testing unit or the insulation testing unit; the switching circuit is in the open state before resistance