This paper introduces the difference between the standard format base data of CINRAD/CC weather radar and the current operational format base data from two aspects of naming method and data structure, and compares the quantitative difference between the basic reflectivity factor and radial velocity of Kunming and Zhaotong experimental radar in several weather processes, and draws a conclusion: Naming method and data storage structure ; The angular resolution of standard format base data is 0.3 degrees lower than that of current business format base data;. Radial data missing and radial echo weakening in standard format base data; The echo intensity of Kunming standard format base data is severely weakened than that of current business format base data, and the echo intensity extremum is weakened from 23dBZ to 29dBZ. With the echo display area to reduce the phenomenon.