For the particularity in the extraction parameters of ocean internal wave, a new intelligent system has been developed based on the author tool Multimedia ToolBook. In the intelligent system, the red dragged information point could be dragged on the positions of the corresponding reference lines for MODIS remote sensing image including ocean internal wave, Dongsha Atoll, and the crests of the ocean internal waves. And the x or y coordinate value could be read through clicking the fill-able fields. Once meeting the calculated condition in intelligent system, it will estimate the length of the longest crest, the propagation direction of the ocean internal waves, and the space of the two adjacent crests. Moreover, it will reshow the Dongsha Atoll and the crests of the ocean internal waves as clicking the button of calculation. The new method that includes three steps adopted to display the measured crests of the ocean internal waves with the angled-lines, which has saved the interface resources, and has increased the measured number of the crests for the ocean internal waves from 6 in the previous intelligent system to 8 in this paper. According to the ocean wave theory, the velocities of the ocean internal waves in different packets have been estimated based on the semidiurnal tide, where the depths of the sea have also been estimated. The extended intelligent system can also be applied to extract the parameters of ocean internal wave in remote sensing image of SAR.