The RDMA network features high bandwidth,low latency,and low CPU load,and is widely used in data-in-tensive services.Aiming at the client/server scenario,a new architecture design of KV software client based on Soft-RoCE and hardware server based on FPGAs is proposed in this paper.By using multiple technical means,KV client can be con-current and expansible,and get the high performance effect of throughput up to 2M+IOPS in Key-Value database.