Underwater Sensor Networks(USNs) technique is an effective way to develop water environment. However, when data is transmitted in the underwater environment, the signal attenuation is fast and the quality of communication link is poor, which reduces the packet transmission rate. Therefore, Link Quality and Location-based Cooperative(LQLC) routing is proposed. It refers to the idea of cooperative routing, which first uses the link quality and node energy information to build candidate forwarding node set, and then selects the node with the best link quality as the forwarding node from the candidate forwarding node set. The nearest node to the forwarding node is selected as the cooperative node in the candidate forwarding node set. Simulation results show that LQLC protocol has a good performance in terms of packet delivery ratio.