Soil triaxial test sample dry-wet cycle test device

The utility model discloses a dry-wet cycle test device for a triaxial sample of a soil body. The device comprises a test box which can be movably opened, wherein the test box is placed in the oven, the test box and the oven top plate are respectively provided with a hole, the weighing mechanism is arranged outside the oven top plate and connected with the string, the string penetrates through theholes and then is connected with the sample lateral confinement structure located in the test box, the indoor humidifier is arranged in the test box beside the sample lateral confinement structure, and the drain pipe is arranged at the bottom of the test box. According to the utility model, the sample is humidified in an atomization humidifying manner, the humidifying process is mild, and the sample is not directly soaked in water, so that the humidifying device conforms to the engineering practice that the roadbed body is not directly contacted with water due to the existence of pavement materials in the practical e