Abstract: Wireless Sensor Networks (WSN for short) almost always try to receive the information of the region in which the wireless sensors are dispersed. This kind of information aggregation is known as coverage in WSNs. Lots of coverage methods have been proposed till now that attempted to focus on the two dimensional WSNs. In the real situation the heights of the dispersed nodes are not the same so it is better to say three dimensional (3D) regions are the real situations that should be considered as the WSN functional regions. So the three dimensional coverage methods are much better to be presented for 3D regions. Actually, a kind of 3D network platform can help to achieve at a 3D coverage method thus this would be needed to have a 3D clustering method to be used as the so-called platform. In this paper a three dimensional network coverage based on our recent proposed three dimensional clustering algorithms for wireless sensor networks is proposed. The clustering algorithm uses pyramid shapes to make the clusters over the network while the new proposed coverage method applies the mentioned clusters to achieve at network coverage. This presented idea will have a significant effect on network energy efficiency for 3D WSNs. Also this idea guaranties both the network full coverage and overlap avoidance over the network.