Underwater Wireless Sensor Networks are progress automation. This network includes sensor nodes (surface sink), mobile autonomous vehicles and AUVs that are submerged in water. These nodes are wireless nodes connected to the ocean via an acoustic link to perform various tasks. This paper compares routing protocols AODV and DSR reactive protocols for their performance under different vehicle conditions, nodes numbers and depths (20, 40, 60 and 80 respectively) at a constant speed of 1 m/s. The performance evaluation of DSR reactive routing protocols and AODV reactive routing protocols was done using v14.5 OPNET modeler. OPNET modeler v14.5 can be used for wired and wireless networks. The simulation results are compared between DSR and AODV routing protocols. Execution parameters include network load, throughput and end-to-end delay