The embodiment of the invention provides a virtual reality terminal and a method and device for processing a video thereof. The method comprises the steps: obtaining play content cutting instructions, and cutting the play contents in a direction of a visual point currently according to the play content cutting instructions; carrying out the coding of the cut play contents, carrying out the caching of all coded cut play contents like batch processing; carrying out the batch coding and downloading of all cut play contents after all play content cutting instructions are executed. If the play contents are video contents, compared with the prior art, the method carries out cutting for many times, and repeats the coding and downloading for many times during video processing, avoids efficiency delay, achieves the cutting of the video in a video play process, and cannot affect the play smoothness.