Color temperature calibration device

A color temperature calibration device includes a panel, a memory and a processor. The panel is configured to output a red data, a green data, and a blue data, and the red data, the green data, and the blue data form a white data according to a first mixed light data. The memory is configured to store a plurality of instructions. The processor is coupled to the panel and the memory, and the processor is configured to execute the following steps according to the plurality of instructions from the memory: receiving a first color temperature data of the panel; adjusting the blue data according to a white standard data and the first color temperature data to obtain the a second color temperature data and a second mixed light data; and when the second color temperature data is the same as the white standard data, output or store the second light mixing data to a specific area of the memory.