Tungsten filament bending tensile test device

The utility model provides a tungsten filament bending tensile test device which comprises a bending part and a tensile part, the bending part comprises a first forming block and a second forming block, the first forming block is provided with a tooth-shaped convex part, and the second forming block is provided with a tooth-shaped concave part; the stretching part comprises a fixed clamp and a movable clamp, the fixed clamp is used for fixing one end of the tungsten filament to be tested, and the movable clamp is used for clamping the other end of the tungsten filament to be tested and can be close to or away from the fixed clamp. Through the first forming block and the second forming block which are close to each other, the to-be-tested tungsten filament is bent by forming the tooth-shaped convex part and the tooth-shaped concave part, and then the movable clamp is used for clamping the other end of the to-be-tested tungsten filament and is far away from the fixed clamp, so that the to-be-tested tungsten fil