Network video playing method, storing method, playing equipment, server side and system

The invention provides a network video playing method, a caching method, playing equipment, a server side and a system. The network video playing method includes the steps that when a video source switching instruction is received, a first mode video clip which is played currently is switched to be a second mode video clip to be played; the first mode video clip and a second mode video clip are mutually independent and are the same in content. According to the technical scheme, when the first mode video clip is played and the video source switching instruction is received, the first mode video clip which is played currently is switched to be the second mode video clip with the same content; for example, a 2D video clip is switched into a 3D video clip with the same content, or the 3D video clip is switched into the 2D video clip with the same content. Due to the fact that the two mode video clips are mutually independent, extraction or conversion time is saved, and therefore the video blocking phenomenon can be avoided in the video source switching process.