Abstract: Scenario simulation system of virtual ocean is an instance of Virtual Reality Technology applied in military fields. Due to the random motion of sea waves, the creating of virtual ocean by computer is pretty difficul t in the research area. This paper studied two models for ocean waves, with great endeavor on the ocean wave theory with Vega and the coding of the ocean module so as to ereate the ocean waves by Vega. The effect of se a wave is comparatively good from the picture and satisfies the need for the practical applications.