Extending lifetime and energy efficiency are important objectives and challenges in wireless sensor networks (WSN). Mobile sinks have been proposed and recognized for efficient data dissemination, reduced latency, and energy efficiency for wireless sensor networks. However, Mobile sink wireless sensor networks (MSWSN) also introduce many challenges especially in high performance routing capability. To address these challenges, we propose a novel efficient data dissemination algorithm for mobile sinks wireless sensor networks. This algorithm, Coordinate Magnetic (CM), is based upon representing the network as a virtual grid and using coordinate conception and magnetic phenomenon for data dissemination in network. We have conducted a simulation study to our work using the Georgia Tech Network Simulator (GTNetS) simulator. Our simulation under evaluation although seems promising.