It was inportant in measuring temperature field in laser processing for laser intelligence process. The measurement of temperature field in laser processing by color CCD camera and computer image technology was presented in this paper, and which is focused on the calibration of CCD colorimetric method. BF1400 and BBR1000 standard blackbody furnace and WV-CP474 CCD were used in this method. The images of temperature of blackbody furnace had been taken in step of 100 ℃ from 700 ℃ to 1400 ℃. Special program based on VC++ had been developed to process the images, and the relationship between colorimetric level and temperature had been established. It was shown that a good agreement between testing dada and real data, and it will be a useful method for measurement of temperature field for laser process after developed.