Video playing method and set top box

The invention is suitable for the technical field of communication, and provides a video playing method and a set top box. The method comprises the following steps of acquiring light control information corresponding to a video during requesting playing the video; and when playing the video, controlling an atmosphere lamp arranged on playing equipment to give out light according to the light control information. Through pre-allocating the light control information adapted to films and controlling the atmosphere lamp to give out light through the light control information, the surroundings during playing the film are more plentiful and interested, and the problem that visual fatigue is easily generated in the process of watching the movie in the prior art can be solved.