Pressure-sensitive Paint Measurement (PSP) Technique has been employed in more and more fields for its unique advantages such as large pressure measurement surface, less interference to fluid field and so on. A PSP Measurement System for turbo-machinery has been established on the basis of equipment in existence for the first time in our nation. Calibration for homemade fluorescent PSP has been conducted in an attempt both to validate the PSP Measurement System and to have as more knowledge of homemade PSP as possible, such as its characteristic of fluorescent intensity versus pressure and its period of validity for use. All of the work prepared the ground for the farther research.