Battery pack voltage withstanding test device

The invention relates to a battery pack voltage withstanding testing device, and belongs to the field of battery pack testing, the battery pack voltage withstanding testing device comprises a support, a plurality of first clamping plates and a plurality of second clamping plates relatively slide on the support, and the first clamping plates and the second clamping plates are directionally and alternately arranged. A clamping groove is formed between the first clamping plate and the second clamping plate, a battery pack is placed in the clamping groove, a supporting plate slides on the rack in the vertical direction, the supporting plate is located between the first clamping plate and the second clamping plate, the supporting plate slides in the clamping groove, a lifting assembly for controlling the supporting plate to slide is arranged on the rack, and a bearing plate relatively slides on the support. A pressure sensor is arranged on the bearing plate and makes contact with the second clamping plate. The lif