In recent years, the transmission of 3D (Three Dimension) multimedia elements, especially 3D video became very easy because of
the quick development of 3D multimedia systems. As well as, the danger of copyright breaking for 3D videos has also raised. "Video piracy" is the
fundamental threat that comprises the 3D video contents. 2D and 3D video watermarking applied in many areas such as protect the copyright of
media owner, broadcast surveillance, controlling on copying video, and ensure authentication of the video. Unfortunately, until recently, 3D
video watermark does not take more attention. In this paper, the techniques that are used to conserve 3D video data from any illicit access are
presented. The categories of 3D video watermark techniques are explained also. Analysis study about 3D video watermark is introduced through
survey some existing watermark schemes, and showing the differences between these, in term of security goals, watermark embedding
algorithms that make their system more robust to various type of attacks that are briefly mentioned. Furthermore the paper presents more
common quality measurements utilized.