The utility model discloses an electric transmission line temperature measurement device. The electric transmission line temperature measurement device comprises a computer central processing unit (CPU), a clock module, a temperature sensing module, a storage module and a communication module, wherein the temperature sensing module collects temperature signals of an electric transmission line and sends the temperature signals to the CPU, the clock module and the CPU are connected to control the CPU to work, the storage module receives and stores the temperature signals sent by the CPU, and the communication module sends information stored by the storage module to a user terminal under the control of the CPU. With adoption of the electric transmission line temperature measurement device provided by the utility model, real-time temperature measurement of the electric transmission line is realized, and the temperature information can be transmitted to the user side through the communication module to allow a user for reference, thereby solving the problem of non-timely temperature measurement of the prior art.