Abstract: Aiming at different requirements of data secure storage and quick read in meteorological and hydrological security business,this paper studies the storage structure of massive meteorological and hydrological data.Based on the 3-level redundant disk array technology and RAID-0\RAID-1\ RAID-5 combination technology,the solutions for storage structure of massive meteorological and hydrological data are put forward,which provides the better complete and feasible design idea for data secure storage