The invention provides a terminal device and a temperature measuring method. The terminal device comprises a main processor, a camera module and a thermopile sensor module. The camera module is used for obtaining image data of a target object, wherein the image data at least comprises a distance value between the target object and the camera module, and an area value of the target object right facing the camera module; the thermopile sensor module is used for carrying out temperature measurement on the target object to obtain temperature data of the target object; and the main processor is used for carrying out correction on the temperature data of the target object according to the image data of the target object to obtain a target temperature value of the target object. With depth recognition characteristics of the camera module being utilized fully and with image processing being cooperated, data of a thermopile sensor is subjected to complex measurement situation compensation and correction to enable temperature measurement data of the thermopile sensor to be more accurate.