The invention discloses a multi-station insulating rod segmented voltage-withstand testing device. A plurality of grounding electrode bases are arranged on a base, a voltage equalizing ring is fixed through a supporting rod of the base, the voltage equalizing ring is connected with a high-voltage power supply, a testing platform is arranged between the base and the voltage equalizing ring, a plurality of high-voltage output electrodes corresponding to the plurality of grounding electrode bases on the base are arranged on the testing platform, a leakage current collecting device is arranged oneach high-voltage output electrode, each high-voltage output electrode corresponds to one grounding electrode base, the testing platform and the voltage equalizing ring are electrically connected through a high-voltage wire, a plurality of to-be-tested insulating rods can be installed at the same time, the testing platform is driven to move downwards through a lifting device to achieve segmented voltage-withstand test of the insulating rods or voltage-withstand test of different lengths, and the testing data of each to-be-tested insulating rod is collected through each leakage current collecting device; the device is simple in structure and can measure a plurality of to-be-tested insulating rods at the same time, and the measurement of the insulating rods with different heights can be achieved.