The invention provides a low temperature detection apparatus for an overhead line vibration sensor, and relates to the technical field of low temperature vibration sensor. The low temperature detection apparatus is used for solving the problem that when a standard sensor is under the lower temperature environment, the detection is not accurate. The side wall of a temperature box is a thermal insulation board which is provided with a through hole; a middle vibration transmission bar penetrates through the through hole; two rotary supports are used for supporting the vibration transmission bar; one end of a vibration transmission pin is fixed at the end point of an external vibration transmission bar, and the other end of the vibration transmission pin is semi-rigidly connected with a motor; a rotary pin disk is arranged between the vibration transmission pin and the motor; one end of a positioning pin is fixed on the rotary pin disk, and the other end of the positioning pin is arranged in a sliding pin hole; one end of a No.1 detection bar is hinged with a standard sensor, and the other end of the No.1 detection bar is pressed on the side wall of the external vibration transmission bar; and one end of a No.2 detection bar is hinged with a detected sensor, and the other end of the No.2 detection bar is pressed on the side wall of an internal vibration transmission bar. The low temperature detection apparatus for an overhead line vibration sensor has the advantages of preventing the low temperature from influencing the standard sensor, improving the accuracy of the standard sensor, and being suitable for low temperature detection of a vibration sensor.