The utility model relates to a condenser temperature measurement early warning system of transformer substation. The problem of among the prior art temperature measurement equipment can't long continuous time the monitoring, with high costs, receive concrete position temperature in interference, the unable test capacitor ware easily is solved. The system includes temperature sense terminal, transfer end, user side, and the temperature sense terminal includes wireless temperature measuring unit in a plurality of surfaces and inside wireless temperature measuring unit, and the user side links toeach other through wireless with the transfer unit respectively including structure management unit, comparison processing unit and early warning unit, surperficial wireless temperature measuring unit and inside wireless temperature measuring unit, and the transfer unit links to each other with the comparison processing unit of user side, and structure management unit and early warning unit linkto each other with processing unit respectively. The utility model discloses combined the wireless communication technique, the temperature sense terminal need not the circuit of arranging, more convenient and on -the -spot installation. The temperature anomaly condition can be in time detected out, timely early warning is carried out. And can the accuracy detect out condenser temperature abnormalregion.