Due to the short of the research on human visual perception characteris tics in the conventional video information hiding algorithm,an inter-frame informatio n hiding algorithm in three dimensional high efficiency video coding (3D-HEVC) based on visual perception is proposed.Firstly,the stereoscopic video image is divided into salient region and non-salient region on the basis of stereoscopic saliency model and the Otsu threshold.Then,the mapping r elationship between secret information and quantization parameter (QP) is established,for the salient region and non-salient region,the QP of P frame or B frame is modu lated by the secret information to be embedded using remainder equal principle,respectively.Finally,the stereoscopic video is code d using the QP embedded secret information.Experimental results show that the proposed algorithm provid es 246bits embedding capacity on average in a frame,and compared with the original HTM13.0,the avera ge decrease of peak signal-to-noise ratio PSNR and str uctural similarity index SSIM of reconstructed stereoscopic video in the proposed algorithm are 3.14×10－2 dB and 5.8×10－5,the bitrate of video stream in the proposed algorithm increases by 0.0741% on aver age,and the secret information can be extracted blindly.