The utility model discloses a non -contact spectrum temperature measuring device for transformer winding, include the logical unthreaded hole of seting up on the transformer cabinet body install infrared printing opacity window pane in the logical unthreaded hole, infrared printing opacity window pane fixed surface has infrared temperature measurement optical fiber, infrared temperature measurement optical fiber is connected with infrared temperature -test sensor, synchronous data acquisition ware, computer and telecommunication system in proper order. The utility model discloses a go up the window pane that the infrared light was passed through in the installation at the transformer cabinet body, adopt the non -contact type infrared temperature detecting probe, carry out the temperature through remote communication module and read and judge with the temperature rise, can acquire transformer winding's dynamic temperature change condition in real time, avoided the influence to the testof electromagnetic radiation, high pressure, high temperature and adverse circumstances, with transformer safety control system antithetical couplet usefulness, can realize high -temperature early warning and to the overtemperature prote of transformer.