According to the princip le of thermal imaging temperature measuring and the characteristic of infrared image, the infrared image pseudo-color coding is studied and a new pseudo-color coding is presented in the paper. The new pseudo-color transformation algorithm makes RGB mix more rationally and solves the limitation of traditional false-color transformation. The analysis and practical application demonstrate that the algorithms of infrared image processing can dealwith image obviously. The algorithmswork stably and well in the TMS320VC33 hardware environ- ment