Abstract: With the rapid development of the water conservancy informatization, the sharing and exchanging of the separately stored data become more and more frequently. Addressing the physical centralized data centers’ problems, like low storage utilization, I/O bottleneck of data exchange and poor ability of physical anti-jamming, based on the existing storage platforms in water conservancy, a novel hybrid cloud storage solution oriented to data sharing and exchanging is designed and implemented. The experiments show that this solution can ensure the data security, improve the comprehensive utilization of multiple storage platforms, and reduce the probability of the hot spots produced in the progress of sharing and exchanging the water conservancy data.

Key words: cloud storage, data exchange, data sharing, water informatization, erasure code