The traditional Domain Name System (DNS), which follows a hierarchical tree structure, is vulnerable to the targeted attacks. Several efforts were proposed to reconstruct DNS as a peer-to-peer network using Distributed Hash Tables (DHT) to improve the system robustness. However, the DHT-based DNS has significantly higher latencies in comparison with traditional DNS. In this paper, we propose a hybrid p2p based DNS by combining the hierarchical tree structure and the flat peer-to-peer structure. The results of simulation show that our system inherits strong robustness from DHT networks and high efficiency from traditional DNS. Even so, we should point out that our system still has lower efficiency compared with traditional DNS.