The invention provides a device used for taking down a photoelectric detector from a socket. The detector is taken down from the testing socket, a rotating block controls two clamp heads at the same time to apply force to the bottom face of the detector, and uniform stress of the detector is ensured. A moving handle is mounted on the rotating block, a fixed handle is mounted on an I-shaped frame,the rotating block is arranged on the top face of the I-shaped frame, the first end of a connecting rod penetrates the I-shaped frame to be connected with the rotating block, and a cross frame is fixed to the second end of the connecting rod. Two supporting rods are located in gaps on the two sides of the I-shaped frame and are connected with the I-shaped frame. The two clamp heads are located onthe supporting rods and fixed with the cross frame. The rotating block rotates along the curved surface of the rotating block to pull up the connecting rod and the cross frame, the clamp heads are driven by the cross frame to move upwards along the supporting rods, and the detector is taken down from the socket. After the device is used, products are not operated bare-handed any more during detector testing, and the problem that product pins are bent to damage glass insulators is eradicated well.