The invention provides an attached temperature measuring device, and the device belongs to the technical field of human body temperature measurement. The device comprises a flexible substrate, wherein a first circuit is arranged in the flexible substrate; a temperature sensor, which is fixed to one side of the flexible substrate and is connected with the first circuit in a communication way; and an adhesion layer, which is arranged on the temperature-sensor-fixed side of the flexible substrate. According to the technical scheme provided by the embodiment of the invention, the device can closely attach the to-be-measured part, and the accuracy and sustainability of temperature measuring of the temperature measuring device are improved.