Tensile load loading device for composite material

The utility model discloses a composite material tensile load loading device which comprises a group of load applying and stretching devices, and each group of load applying and stretching devices comprises an upper end clamping part and a lower end clamping part; the upper end clamping part comprises a tension applying rod, a tension spring, a rotary connector and an upper end clamp which are connected in sequence; the lower end clamping part comprises a lower end clamp and a tension sensor which are connected in sequence; comprising a frame which is in a cuboid shape. The upper end clamp and the lower end clamp are arranged in the frame; the tension applying rod penetrates through the upper end face of the frame and is in threaded connection with the upper end face of the frame. The tension sensor is fixedly connected with the lower end face of the frame. According to the device, tensile loads with different sizes can be applied to a plurality of composite materials, the device is placed in a humid and hot