The invention provides volume resistivity measurement equipment for mandrels of insulators. The equipment comprises a temperature and humidity adjusting box, sliding guiding rails and a volume resistivity tester; the temperature and humidity adjusting box is used for providing a sealed testing environment with the constant temperature and humidity for to-be-measured mandrels; the sliding guiding rails are arranged on the inner wall of the temperature and humidity adjusting box; and the volume resistivity tester is slidably arranged on the sliding guiding rails and used for clamping the to-be-measured mandrels and achieving measurement on the volume resistivity of the to-be-measured mandrels. According to the equipment, by achieving measurement on the volume resistivity of the to-be-measured mandrels in the sealed testing environment in the temperature and humidity adjusting box, the sealed testing environment with the constant temperature and humidity can be guaranteed, and therefore the condition that the measurement precision is influenced by environment changes is avoided; and meanwhile by achieving measurement in the temperature and humidity adjusting box, potential safety hazards caused by electric leakage in circuits of the to-be-measured mandrels can be avoided, the condition that external personnel make contact with the circuits of the to-be-measured mandrels can be avoided, and then the measurement safety can be improved.